I know this is an old thread, but I just had to comment on something. I bought a jem body project (alder) and was told it was for edge and lo-
pro edge. I had a rg1550 that I wanted to use for parts (edge pro)for the maple neck and to make a natural out of it. I did the swap, and it came out looking pretty sweet. The body was apparently routed for the old style neck (56mm?) but the new prestige necks are a bit wider (58mm?) so had to sand a bit off each side to make it fit.
The first issue I had with the trem was that I couldn't get the action low enough to match my real jem.
I had the bass side trem adjustment screw bottomed out, and the treble side nearly bottomed out. In addition, there was only a tiny bit of pull up ability.
The first thing I did (since it was a natural) was take the trem out and sand a couple millimeters of wood from the back route where the trem block was hitting the wood. Took me a while, but it worked well, and now I had normal pull up ability and can't even really tell I did any sanding.
The second thing I did was shim the neck with a brass shim. This brought the neck angle up, but I had to back out the trem height adjustment screws a couple turns to get it playing with really low action like my original jem.
But I discovered the intonation was off, so I adjusted it, and the high "e" saddle ended up moved forward to the point that it is hitting the pickguard. So now I may have to cut a bit of the pickguard to make it work.
Oh well, I'm still working on it, and I'll see if I can get it adjusted right. Maybe I'll try a smaller shim and lower the trem a bit to see if I can get it intonated.
I'll update how it ends up when I get it there.
