Re: ZR tremolo radius, 400 vs. 430
So I have three ZR trems. I took a look at them after I got home from work. One is on a S5470 and is supposed to be a 430mm radius. Another on the Indonesian S5EX1 is supposed to be 400mm. I have a third I bought just for measurements (sustain block) and it's black. Looked at the auction I bought it from and it was listed as a ZR2 yet it's identical to the ZR on the S5EX1 and was slightly different from the Prestige ZR2 term where the intonation tool screws in. But other than that, I cannot see a difference in the actual radius or base plate. None appear to have shims but admittedly, they could be completely sealed below the saddles. The black ZR, not attached to a guitar is in pieces. No shims.
So that leaves me with the 5470's trem and I'm not going to take it apart to look as I have a good, working setup on it and I don't want to screw it up. Honestly all the base plates "look" the same but eyeballing the difference between a 400mm and 430mm radius would be pretty futile. I really wish Ibanez would start stamping their parts with ID's to make things a bit easier. There are no ID numbers anywhere on these things.
I see Rich has saddle shims for the ZR. Has anyone ever shimmed a ZR to go from 400 to 430? Any guides on what thickness to use for each block? I can see this getting complicated.