Many of times you will shoot the heavier guns bettter. With the lighter guns are you shooting off to the lift or right and down? I ask as I notice many shooter tend to push their lighter guns in order to overcome muzzle flip. Its a bad habbit many people get into over just locking their wirst tighter. With a heaver gun they dont feel the need to do this. I also assume that you shoot your .22 more than any other guns which is the case with most shooters I think, that too will have some effect on it.
Basically I don't think grip angle has that much to do with it. It depends a lot more on sight picture and trigger control. Remember with all guns the basics are there and the basics are what counts the most, you don't see shooters on top shot saying "I didn't shoot as good cause of the grip angle.".