Leroy if I may - I'm in the middle of an extended comparison between my snubby (LCR .38) and my P365 for gym carry. I typically clip my LCR on my gym shorts, AIWB, in a Dark Star Gear, with a MMT flat ACP for comfort. That rig weighs 19.7 oz. When I have my P365 in a JMCK AIWB, loaded 10+1 of Speer GD the complete package is 26.6 oz. I can manage the weight delta, although I feel it. What I do notice a lot is the shape of the revolver being more kind to my middle than the back of the semo auto. For squats especially, the P365 digs in a lot more during the range of motion. Having said that, 11 rounds of 9mm +p trumps 5 rounds of wadcutter if I need it. So "for me" this would mean turning my snubby in for another P365 FCU (I have lots of P365 platform grip frame options, a couple slides and quite a few magazines.)
I was wondering, for you or anyone else who has or is considering replacing a J-frame with a pocket semi-auto, specifically the P365, what compromises have you had to make to get the extra capacity?