The TL;DR: Great for the money.
So finally I plug it in. The tone sweep is only useful for about 40% of its travel, but it works, and the volume sweep is usful through the whole range. The pickup selector feels a bit cheap (wiggly), but works well. I play a bit, and adjust the pickup heights to please my ears. They really don't sound bad at all, they're alright. The bridge pickup on its own is too thin for my tastes, but the other two positions sound good to me. The neck feels 60's thin, and appears to have no finish at all, but feels very smooth. The radius is very flat - the website says 14" and that looks accurate but I don't have gauges for that.
I put the trem arm in, and the first thing I notice is the arm stays where you put it. That's a surprise for cheap JM/Jag style trems. But it needs loosening, as it won't do any dive at all. After many screw turns, it has good range, but I notice something else. The tremolo arm collet is not quite in the right place - it actually rubs the B string and bends the string where they contact. You can even hear the B string ring out a high tone when you move the trem, so that's not good. I will have to think about what I can do about that. Worst case, I will block it and play it as a hardtail. I'll look for alternatives because I think a seafoam green guitar should do surf, and you can't do surf without a trem. So placement of the trem was not a detail they paid enough attention to in the factory.
One review I read mentioned the body was smaller than a Fender. I couldn't tell that by playing the guitar, but measuring, they're right. It is just a little smaller, but to me that is not a playing issue. I imagine it's slight changes to the design to avoid copyright infringement, and it's fine. Bottom line, the only thing bugging me is the trem collet rubbing the B string. The rest of the guitar is great for the money. It looks like a fantastic mod platform, and I imagine replacing the electronics would be worth it. I might shim the neck just so I can raise the saddles more and increase the break angle behind them. They also sent a very decent cable with the guitar because I ordered direct from them instead of Reverb or Amazon.
Cons:
Sloppily cut nut, but proper slot depths.
Bad tremolo mounting angle: B string rubs trem arm collet and rings out.
Too dark to be seafoam green but still a good color.
Unboxing the guitar, I was pleasantly surprised to find it didn't show any visual flaws. For the money, that really surprised me. It included a hand-written note from CNZ, which is a friendly plus. I ran my fingers down both edges of the fretboard to check for sprout, and found none at all. So far, really good. I sited down the neck and saw a little more relief than I prefer, so I gave the truss rod 2 eighth turns. The first turn showed me it was not engaged at all, and the second turn made the neck as straight as I like. The bridge was set pretty high, and the saddles very low so the screws were sticking out quite a lot. I lowered the bridge all the way so I could raise the saddles to a somewhat better compromise. I left the action lower than I need to check out the frets and tuned it. I could not detect a single high fret, so I am now impressed. And it is already intonated well. At this price point I would have expected both to need help.NGD: CNZ Audio JM
- BatUtilityBelt
- Reactions:
- Posts: 1845
- Joined: Thu May 28, 2020 4:25 pm
I did a little experiment regarding the tremolo arm collet rubbing on the B string. With full string tension, I loosened all 6 tremolo plate mounting screws, and used a fair amount of force to nudge the top section toward the left. Then I tightened them back up and retuned. It did not stop the collet from contacting the B string, but it did reduce the friction there so it makes less noise. That might just work out for Gumby (I think it resembles Gumby).
Now, after playing more, I probably will replace the bridge, because the strings do change spacing when playing hard. I can't hear a difference, but it might lead to mistakes because I am not a god. I wish that GC Used Liquid deal had not fallen through. I was planning to test its roller bridge on this guitar to see if I should order one from Kurt. Without reasonable dimensional matching, I'm just not going to buy other bridges to try. I do have a Mustang bridge on another guitar I can test, but not a spare.
Now, after playing more, I probably will replace the bridge, because the strings do change spacing when playing hard. I can't hear a difference, but it might lead to mistakes because I am not a god. I wish that GC Used Liquid deal had not fallen through. I was planning to test its roller bridge on this guitar to see if I should order one from Kurt. Without reasonable dimensional matching, I'm just not going to buy other bridges to try. I do have a Mustang bridge on another guitar I can test, but not a spare.
I've got an old SJM with the stock roller bridge as well as other roller bridges. Let me know what info you need, I'll be happy to measure them for you...BatUtilityBelt wrote: ↑Tue Oct 25, 2022 10:15 pm ...I wish that GC Used Liquid deal had not fallen through. I was planning to test its roller bridge on this guitar to see if I should order one from Kurt. Without reasonable dimensional matching, I'm just not going to buy other bridges to try. I do have a Mustang bridge on another guitar I can test, but not a spare.
Delightful mix of insolence, arrogance and narcissism
Proud RINO trapped in a heavy metal chassis
Growing up, only kid in the neighborhood with an Uncle Ahkbar
Proud RINO trapped in a heavy metal chassis
Growing up, only kid in the neighborhood with an Uncle Ahkbar
- BatUtilityBelt
- Reactions:
- Posts: 1845
- Joined: Thu May 28, 2020 4:25 pm
Oh, that' be great. Thanks a lot. I guess there are 4 things I'd really care about.
First is the radius, because if that's not around 14", the rest would not matter. One inch off is fine, 2" difference would probably not work.
Then the center to center measurement across the posts. The CNZ bridge posts span 73 mm, or 2.87" - 2.88". I'd rather not fill and redrill. The height of the posts from the bottom of the bridge to the bottom of the posts would probably be good to know. the CNZ (short of adjustment) is just shy of 0.75". Finally, the diameter of the posts, I suppose would be important. While I could wrap them fatter, they need to fit inside the ferrules. The CNZ posts are 0.275", and the ferrules are 0.313" inner diameter. Or if it's easier, you could send the SJM and I'll just not send it back.

- BatUtilityBelt
- Reactions:
- Posts: 1845
- Joined: Thu May 28, 2020 4:25 pm
Since I've said "mod platform" a couple times, here's the innard routing.
It will probably be the weekend before I can pull the bridge off the SJM to measure but I assume you want a Jazzmaster style bridge. However, the roller bridge on the Rondo site is for a TOM setup and looks no different than any other aftermarket TOM roller bridge. Obviously, it isn't a plug and play replacement for a Jazzmaster style bridge. However, IIRC, @honyock has been down this road before and might have some relevant info regarding aftermarket Jazzmaster style replacement bridges:BatUtilityBelt wrote: ↑Tue Oct 25, 2022 10:15 pm ..I was planning to test its roller bridge on this guitar to see if I should order one from Kurt. Without reasonable dimensional matching, I'm just not going to buy other bridges to try. I do have a Mustang bridge on another guitar I can test, but not a spare.
https://www.rondomusic.com/Roller_Bridge.html
Delightful mix of insolence, arrogance and narcissism
Proud RINO trapped in a heavy metal chassis
Growing up, only kid in the neighborhood with an Uncle Ahkbar
Proud RINO trapped in a heavy metal chassis
Growing up, only kid in the neighborhood with an Uncle Ahkbar
- BatUtilityBelt
- Reactions:
- Posts: 1845
- Joined: Thu May 28, 2020 4:25 pm
No problem, don't worry about pulling it. I have to rule it out anyway. I was looking at the Rondo roller bridge again this morning. While it looks like the post centers would line up well, Rondo's bridge doesn't come with the studs, which would be absolutely necessary. I've already ruled out the typical Mustang bridge replacement though, because they are nowhere near 14" radius and those saddles don't have height adjustment.tobijohn wrote: ↑Wed Oct 26, 2022 11:25 am It will probably be the weekend before I can pull the bridge off the SJM to measure but I assume you want a Jazzmaster style bridge. However, the roller bridge on the Rondo site is for a TOM setup and looks no different than any other aftermarket TOM roller bridge. Obviously, it isn't a plug and play replacement for a Jazzmaster style bridge. However, IIRC, @honyock has been down this road before and might have some relevant info regarding aftermarket Jazzmaster style replacement bridges:
https://www.rondomusic.com/Roller_Bridge.html
But loose tolerances gave me another reason to replace this bridge after about an hour of playing louder this morning: the height screws get excited and rattle out. I like them adjustable, so no loctite, but they are definitely an issue.
Well then, any metric aftermarket roller bridge and stud set would work, there's nothing proprietary about the Agile one. I've got a few different brands of roller bridges in the parts bin and canget some measurements a little later. if that will helpBatUtilityBelt wrote: ↑Wed Oct 26, 2022 11:41 am
No problem, don't worry about pulling it. I have to rule it out anyway. I was looking at the Rondo roller bridge again this morning. While it looks like the post centers would line up well, Rondo's bridge doesn't come with the studs, which would be absolutely necessary. I've already ruled out the typical Mustang bridge replacement though, because they are nowhere near 14" radius and those saddles don't have height adjustment.
Delightful mix of insolence, arrogance and narcissism
Proud RINO trapped in a heavy metal chassis
Growing up, only kid in the neighborhood with an Uncle Ahkbar
Proud RINO trapped in a heavy metal chassis
Growing up, only kid in the neighborhood with an Uncle Ahkbar
- BatUtilityBelt
- Reactions:
- Posts: 1845
- Joined: Thu May 28, 2020 4:25 pm
That would likely help, thanks! My preference is to adjust saddle heights individually, and I think the Jazzmaster trem would definitely work better with a roller bridge. I know that's a narrow field.tobijohn wrote: ↑Wed Oct 26, 2022 12:09 pmWell then, any metric aftermarket roller bridge and stud set would work, there's nothing proprietary about the Agile one. I've got a few different brands of roller bridges in the parts bin and canget some measurements a little later. if that will helpBatUtilityBelt wrote: ↑Wed Oct 26, 2022 11:41 am
No problem, don't worry about pulling it. I have to rule it out anyway. I was looking at the Rondo roller bridge again this morning. While it looks like the post centers would line up well, Rondo's bridge doesn't come with the studs, which would be absolutely necessary. I've already ruled out the typical Mustang bridge replacement though, because they are nowhere near 14" radius and those saddles don't have height adjustment.
Do the Jazzmaster posts just slide into an anchor pressed into the body (as opposed to threaded anchors for TOMs)? Without taking it apart, that seems to be how the SJM bridge is attached. If there are no strings on the guitar and you turn it upside down, does the entire bridge assembly fall out?
Delightful mix of insolence, arrogance and narcissism
Proud RINO trapped in a heavy metal chassis
Growing up, only kid in the neighborhood with an Uncle Ahkbar
Proud RINO trapped in a heavy metal chassis
Growing up, only kid in the neighborhood with an Uncle Ahkbar
- BatUtilityBelt
- Reactions:
- Posts: 1845
- Joined: Thu May 28, 2020 4:25 pm
Oh yeah, and the Mustang style pic you added on the walnut looking top looks like the Jiayouy $13 bridge on Amazon. Its dimensions would work, and I think it would be a better bridge despite not being a roller. If I don't find the right roller bridge, I'll probably try that one.
https://www.amazon.com/Jiayouy-Chrome-R ... %3D&sr=8-4
That's the bridge on the SJM. And here's a slightly pricy alternative although maybe not if you assign value to your time. They're not rollers but still a lot less friction on the strings:BatUtilityBelt wrote: ↑Wed Oct 26, 2022 12:42 pm Oh yeah, and the Mustang style pic you added on the walnut looking top looks like the Jiayouy $13 bridge on Amazon. Its dimensions would work, and I think it would be a better bridge despite not being a roller. If I don't find the right roller bridge, I'll probably try that one.
image.png
https://www.amazon.com/Jiayouy-Chrome-R ... %3D&sr=8-4
https://graphtech.com/collections/tusq- ... jazzmaster
Delightful mix of insolence, arrogance and narcissism
Proud RINO trapped in a heavy metal chassis
Growing up, only kid in the neighborhood with an Uncle Ahkbar
Proud RINO trapped in a heavy metal chassis
Growing up, only kid in the neighborhood with an Uncle Ahkbar
- BatUtilityBelt
- Reactions:
- Posts: 1845
- Joined: Thu May 28, 2020 4:25 pm
Been looking all morning, and it looks like height adjustment and rollers just don't live together anywhere. I think I'll just pop for one BM005 roller and one Mustangish BM003 with a 14" radius and see what flies. I sure do appreciate the input!tobijohn wrote: ↑Wed Oct 26, 2022 1:04 pm That's the bridge on the SJM. And here's a slightly pricy alternative although maybe not if you assign value to your time. They're not rollers but still a lot less friction on the strings:
https://graphtech.com/collections/tusq- ... jazzmaster
It says it's for Mosrite style but it might work. Adjusts like a TOM but the style is more compatible if the aesthetics are a factorr:BatUtilityBelt wrote: ↑Wed Oct 26, 2022 1:25 pm
Been looking all morning, and it looks like height adjustment and rollers just don't live together anywhere. I think I'll just pop for one BM005 roller and one Mustangish BM003 with a 14" radius and see what flies. I sure do appreciate the input!
www.amazon.com/Guyker-Compatible-Mosrit ... 132&sr=8-2
Delightful mix of insolence, arrogance and narcissism
Proud RINO trapped in a heavy metal chassis
Growing up, only kid in the neighborhood with an Uncle Ahkbar
Proud RINO trapped in a heavy metal chassis
Growing up, only kid in the neighborhood with an Uncle Ahkbar
At some point I'l probably want to replace the SJM pickguard. A previous owner had relocated the volume/tone knobs so the original shaft holes are exposed. If I do replace it, I'll try to find one with Jazzmaster pickup cutouts.
I suppose I could just find some grommets and plug them up but if given the opportunity to make a simple solution more complicated, I usually jump at it. Or I could add two more pots and and have volume tone controls for each pickup!
I suppose I could just find some grommets and plug them up but if given the opportunity to make a simple solution more complicated, I usually jump at it. Or I could add two more pots and and have volume tone controls for each pickup!
Delightful mix of insolence, arrogance and narcissism
Proud RINO trapped in a heavy metal chassis
Growing up, only kid in the neighborhood with an Uncle Ahkbar
Proud RINO trapped in a heavy metal chassis
Growing up, only kid in the neighborhood with an Uncle Ahkbar
- BatUtilityBelt
- Reactions:
- Posts: 1845
- Joined: Thu May 28, 2020 4:25 pm
I did see that one, and immediately thoughttobijohn wrote: ↑Wed Oct 26, 2022 1:36 pm It says it's for Mosrite style but it might work. Adjusts like a TOM but the style is more compatible if the aesthetics are a factorr:
www.amazon.com/Guyker-Compatible-Mosrit ... 132&sr=8-2
- BatUtilityBelt
- Reactions:
- Posts: 1845
- Joined: Thu May 28, 2020 4:25 pm
Yeah, that's a damn shame. I like the mint green. Pots might be too crowded, but switches maybe, if you have a use for them...tobijohn wrote: ↑Wed Oct 26, 2022 2:01 pm At some point I'l probably want to replace the SJM pickguard. A previous owner had relocated the volume/tone knobs so the original shaft holes are exposed. If I do replace it, I'll try to find one with Jazzmaster pickup cutouts.
I suppose I could just find some grommets and plug them up but if given the opportunity to make a simple solution more complicated, I usually jump at it. Or I could add two more pots and and have volume tone controls for each pickup!
I'm thinking only a player would do that mod so I'm wondering now if those are the stock pickups. The stock SX pickup covers are a little more yellow, these are kind of beige. I'll have to check one of t hese days. I've been pleasantly surprised in the past by pickup ugrades on used guitars. I remember thinking a used Agile AD-2500 sounded pretty good and couldn't understand why everyone panned the stock pickups. I finally looked and a previous owner had installed a set of Gibson pickups....BatUtilityBelt wrote: ↑Wed Oct 26, 2022 2:05 pm
Yeah, that's a damn shame. I like the mint green. Pots might be too crowded, but switches maybe, if you have a use for them...
Delightful mix of insolence, arrogance and narcissism
Proud RINO trapped in a heavy metal chassis
Growing up, only kid in the neighborhood with an Uncle Ahkbar
Proud RINO trapped in a heavy metal chassis
Growing up, only kid in the neighborhood with an Uncle Ahkbar
- BatUtilityBelt
- Reactions:
- Posts: 1845
- Joined: Thu May 28, 2020 4:25 pm
Oh yeah, I love when that pickup bingo happens. I bought a 2nd Mexican Tele to flip because the price was just too low, and then found it had Texas Specials in it. I've also bought a couple guitars that ended up having different pickups in the cases storage. That's my favorite scenario.tobijohn wrote: ↑Wed Oct 26, 2022 2:15 pmI'm thinking only a player would do that mod so I'm wondering now if those are the stock pickups. The stock SX pickup covers are a little more yellow, these are kind of beige. I'll have to check one of t hese days. I've been pleasantly surprised in the past by pickup ugrades on used guitars. I remember thinking a used Agile AD-2500 sounded pretty good and couldn't understand why everyone panned the stock pickups. I finally looked and a previous owner had installed a set of Gibson pickups....BatUtilityBelt wrote: ↑Wed Oct 26, 2022 2:05 pm
Yeah, that's a damn shame. I like the mint green. Pots might be too crowded, but switches maybe, if you have a use for them...
On my Mustang with the JM vibrato, I had a few different setups, I liked the feel of the Wilkinson style best, but it isn't height adjustable. I had a roller TOM that came with my C stock Valkyrie that I swapped with the Wilky since it has longer throw with the adjustable post location though I ended up with the bridge centered to get respectable if not down right amazing intonation where the listing said it could not be intonated with the roller TOM.
The roller TOM ended up on my Gretsch streamliner running the Bigsby B3 and Towner tension bar.
Bought a 2nd roller TOM from Amazon and it made its way to the HB Mustang.
I have had a couple different SJMs one with a buzz stop and the threaded saddles and one without, I tried adjustable Mustang style saddle and it never worked right. The Threaded saddles worked best with heavier strings (13s). With the buzz stop the threaded saddles worked better too with as low as 9s.
Sent from my SM-G998U using Tapatalk
The roller TOM ended up on my Gretsch streamliner running the Bigsby B3 and Towner tension bar.
Bought a 2nd roller TOM from Amazon and it made its way to the HB Mustang.
I have had a couple different SJMs one with a buzz stop and the threaded saddles and one without, I tried adjustable Mustang style saddle and it never worked right. The Threaded saddles worked best with heavier strings (13s). With the buzz stop the threaded saddles worked better too with as low as 9s.
Sent from my SM-G998U using Tapatalk
10 years, 2 months, and 8 days of blissful ignorance ruined by that snake in the grass Major Tom.
- BatUtilityBelt
- Reactions:
- Posts: 1845
- Joined: Thu May 28, 2020 4:25 pm
@honyock thanks! My biggest issue is the 14" radius limiting my options. I think you're right if I kept the threaded saddles, the buzz stop would help. I think with the JM/Jag designs, there is just a lot more moving around at the bridge in general. My favorite Jazzmaster is using a Mustang bridge and that kept its jangle while taming the random string spacing changes it had with threaded saddles. On this one, I'm looking more toward the roller bridge because the trem knocks the guitar out of tune too easily. I think that's part bridge, part nut, but if it gets better holding tune with the roller bridge, I know replacing the nut will just add icing to the cake. I do want to keep the oddball additional frequencies from behind the bridge (they make it to the pickups and add character). I'm jealous you guys found Rondo earlier than I did and snatched up SJMs, those look like great guitars to me. As much as I like my Liquids, there are things I can't do with a hard tail. I even considered swapping the tailpiece on one for a Duesenberg Les Trem II. I have one on an Eastwood guitar and it's the best part of that guitar.
I'm pretty certain the radius of the Wilkinson is close to that I'll see if I can check with my radius gauges if i find them. I agree it did make it much better at staying in tune. I think the smooth top is a lot nicer feeling for palm muting tooBatUtilityBelt wrote:[mention]honyock[/mention] thanks! My biggest issue is the 14" radius limiting my options. I think you're right if I kept the threaded saddles, the buzz stop would help. I think with the JM/Jag designs, there is just a lot more moving around at the bridge in general. My favorite Jazzmaster is using a Mustang bridge and that kept its jangle while taming the random string spacing changes it had with threaded saddles. On this one, I'm looking more toward the roller bridge because the trem knocks the guitar out of tune too easily. I think that's part bridge, part nut, but if it gets better holding tune with the roller bridge, I know replacing the nut will just add icing to the cake. I do want to keep the oddball additional frequencies from behind the bridge (they make it to the pickups and add character). I'm jealous you guys found Rondo earlier than I did and snatched up SJMs, those look like great guitars to me. As much as I like my Liquids, there are things I can't do with a hard tail. I even considered swapping the tailpiece on one for a Duesenberg Les Trem II. I have one on an Eastwood guitar and it's the best part of that guitar.
I know it works really well with the Agile radius that I think is like 350mm if memory serves.
Sent from my SM-G998U using Tapatalk
10 years, 2 months, and 8 days of blissful ignorance ruined by that snake in the grass Major Tom.
- BatUtilityBelt
- Reactions:
- Posts: 1845
- Joined: Thu May 28, 2020 4:25 pm
Thanks! I looked at a few like that and they looked like they'd work and I do like Wilkinson parts, but there were not enough specs for me to know it could be a drop-in. I have 2 bridges on their way though, and both look likely to work well. One will fit and the other will live in my parts bin for a while.
On another tangent - the way this guitar is set up, the trem is closer to the bridge than on most, so I'm not even confident a Buzzstop could fit.
Yet another - Talking with CNZ Audio, I mentioned the B string rubbing on the trem collet and that it almost led to a return. First, they were very good about offering a no-questions return, which I declined because it's workable as is. They suggested maybe the nut on the underside of the trem collet could be loosened to nudge it further over. I took the trem off to try it, and found it was solidly soldered to the fulcrum body. The manufacturer definitely did not want it moving. I will say it is a very solid feeling trem.
- BatUtilityBelt
- Reactions:
- Posts: 1845
- Joined: Thu May 28, 2020 4:25 pm
I gave myself 2 bridge options - a new roller bridge or a new Mustang bridge. I ended up going with bridge option 3... I put the saddles from the new Mustange bridge into the original threaded barrel bridge. I hate replacing saddles because it is a lot of fiddling with small parts, but this was my best option. The original threaded barrel bridge has post height adjustments the Mustang bridge doesn't have, but the Mustang saddles are so much better with a trem than the threaded saddles, and no more problem with random string spacing problems from strings jumping around. I did not try the roller bridge because it would have required reaming the post holes, so that's a commitment I was not ready to make. That bridge will wait for another project. These cheapo Mustang saddles work great on the guitar, quite happy with it.