Re: edge zero help please
I'm no expert, but on my RG3XXV the trem doesn't sit perfectly "level" when it just starts to contact the stop bar and there is no way to adjust where the stop bar comes to rest in it's slots. When I asked Rich about this, he said whatever point the trem is at when the block contacts the stop bar is pretty much where you have to call your trem "level". That being said, it seems like I can change the tension of the main springs with the knob quite a bit with the trem block still contacting the stop bar and the stop bar resting in it's felt slots. Personally, I adjust the main springs with the knob so there is they are as tight as possible and the block just barely resting on the bar. This makes the trem pretty stiff, but makes it very stable for bends.
I think a person could get creative and change the "level" spot of contact between the stop bar and trem block though. By either attaching a shim to the trem block or adding heat shrink tubing to the stop bar. (At least that would work in my case, as the fine tuners are up higher than they should be with mine at the point of contact, in a very slight dive)
If the back end of the trem is too low, I think you could add epoxy or something to the notch where the stop bar rests... or maybe add a bit of shrink tubing to the ends of the stop bar... just a thought.
In the end mine works just fine, so I did the intonation with the trem in the position of first contact. Even though it is not perfectly level, and it seems stable.