The springs on the trem have quite a bit to do with this, the newer they are the stiffer they'll be (bends will be harder), the older they are, the bouncier they'll be (dead easy for bends/whammy tricks etc). Once they wear in they'll feel looser. I know that my BSB still feels a lot stiffer than older ones, as the springs are still relatively new, but I am sure that will change
. How old are the other guitars in comparison to the RG? I know this isn't a brilliant answer, but I think someone will come up with a batter one, although i do believe this may be it.
