With a back that lets you know its there, perhaps attaching a leather holster to a vest may be benificial??? It would spread the weight .
Twenty-three years ago I punched my femur through my pelvis destroying the asertabulum (hope spelling is close) 40+screws, 6 plates, and 4 years later a full hip replacement all made sure I'd no longer carry my larger framed guns in a waist holster, even with the lighter stuff I wear suspenders. I see more and more LEOs wearing suspender type devices to help carry the load they pack.
Good luck to you!