EDC: Glock 19X; Surefire X300U-A; Trijicon RMR HRS.
I EDC a 19X and mounted to it is a X300 and a RMR HRS (and i mean EDC, only thing that stops me from carrying are metal detectors or security wanding people). I work for a liquor distributor, so that means kneeling, crouching, stooping and bending at the wait at least 400 times a day, 4 days a week to pick up boxes of liquor and wine ranging from 5 to 50 pounds. I carry AIWB with a spare 19 rounder and another 19 rounder loaded. This is in a TIER 1 Concealed Axis Elite holster. Yes, i feel it at all times of the day. You are supposed to feel it, its a freaking GUN! Its not supposed to be comfortable. If we were meant to carry guns comfortably every day, god would have made us a drop leg holster like Robocop. Personally the 19x/45 is the best Glock EVER made. I think you will enjoy carrying the G45.