OffsetGuitars.com

Looks like it's for sale now.
http://www.ebay.com/itm/JM-bridge-to-fi ... 2a2c96f10d

I'm guessing its not gonna work with the mute though. If it does I'm gonna get this.

I have a Staytrem for the Jazz/Jag and the standard mute does not fit without widening the post holes, but apparently the newer ones work with an un modified mute.

I'm fine with widening the holes but they made the channel wider for intonation purposes. I was under the impression from a previous thread that they were not going to make it any wider I guess the plan changed. I sent an email asking.

Edit: I found that thread and it had been updated
http://www.offsetguitars.com/forums/vie ... 4&start=30

I just installed the Staytrem bridge on my Custom Shop Bass VI tonight. It's perfect.

Install is simple, fit is great, saddles are machined beautifully, both resonance and sustain are increased, and accurate/correct intonation is easily achievable. Much like John's trem bar and collet, this bridge is simply yet smartly designed, even the Allen wrench has a unique machined end that makes seating it and adjusting post height simple and smooth. Only complaint I could see logging is the lack of saddle height adjustment but you specify radius upon ordering and it measures perfectly with a gauge on my 7.25" fretboard so no issues there for me, not really an essential feature on this instrument. One less thing to adjust and come loose and cause buzz etc. etc.....