OK - may sound dumb, but when I shoot my .410 or .357 barrels, I bump my support hand somehow. I am right handed. I grip with my right hand and wrap my left hand over/around my right hand, and place my left thumb over my right thumb. When I shoot barrels that have some recoil, it seems the fingers on my left hand bump against the trigger guard/release. Does anyone have a recommendation on what works for them. I have average size hands and use a grip without finger grooves. It is a walnut grip with the recoil absorbing material on the back. I have other grips I can try, I use this one primarily because I can shoot with either hand.
Thanks - Billy