To create the cushioning effect for recoil control, the rubber grips have to be thicker/bigger. That's how it gets it's "spring rate," so to speak. It would be nice to get the best of both worlds, but it's impossible to build a thin grip and absorb recoil like the bigger rubber grips do.
What I object to is that extra butt length of the LG303 that allows you to put your pinky on the grip. That's all I have a problem with. Can the LG303 pinky part be cut down without getting into the electronics?
I think it is possible. I think we have the technology. We've put a man on the moon. We can DO this!