Mine is set up the same way as your better half !Its a totally subjective thing. I have a 9mm P30, and the small parts all around is perfect for me. My wife shoots a pair of .40 P30s; her hands are the same size as mine, but after a lot of experimentation, she prefers a medium back strap, large right side panel, and small left side panel. That combination feels downright bizarre to me, but she shoots the hell out of it, so who's to say???
Only negative ?? The grip isn't the best for shooting left hand.
Makes me rethink my current set up Now?
Shouldn't the grip be the same in either hand? So I might remove the Large right back to small or use medium all the way around.