Check out Fist holsters
https://www.fist-holsters.com/He uses an extremely THIN kydex material that is just damn nice for IWB carry...... for the gun, I love my Glock 48 (have the original and the newer MOS version) but I also got a Glock 43 for summer time.... I'm even know to wear a belt and pull basketball lightweight shorts up over the holster lol.... a long tshirt or a super light button up fishing shirt and you're set.
I can't do appendix either... it's cool if it works for you and maybe I just haven't found the right holster for me? I carry at 3:30-4 o'clock .... the biggest epiphany for me was to just stop giving a chit if it it lightly prints or shows every once in awhile.... it's GOING to happen, just be aware of it and try to limit it.
