I just bought a rear cavity plate from a 2012 RG320 that I want to use on my 1990 EX140 (one of the earliest value-oriented RG's they ever made) that was missing it when I bought it used. It's plate recess is the same exact shape and the holes appear to line up with the holes on the plate. However I don't know if the size of the cover has been different over the years or not so I'm a little concerned that it won't fit. Does anyone know if Ibanez resized or made any other changes to the rear cavity cover on RG's from year to year?