I have tried to carry a Glock 26 and Kahr PM9 at 3:30-4:00 with several holsters and a good double thickness 1 1/2" belt.
My problem is it feels very uncomfortable, I have tried it high and low, still it just seems to either be poking me in the back or the hip. I have tried different holsters and the most comfortable for the 3:30 is the Remora, I have a Concealment Solutions (hybrid like CB), Highnoon, they all are just to uncomfortable.
I do carry in AIWB with several different holsters and it seem very comfortable, maybe some peoples build are just different. I am 5'10" 200lbs wear a size 36" waist, I just don't get it, so many people carry at the 3:30 position and like, could I be doing something wrong?