Magazine releasing and back problems

Setup:HK P2000SK T.Rex Arms Nomad/ SHTF Gear Hybrid IWB Hank's CCW BeltFirst started carrying my SK in my SHTF hybrid IWB. Wasn't bad for a long time, then I started having back issues. Like muscle aches in my lower back from this gun jamming in to my back.Tried switching to a T.Rex Arms Nomad IWB. Thought the smaller footprint would help. Not only does it have a nasty penchant for releasing my mag if I bend the right way, my lower back pain and discomfort has only gotten worse. I usually carry between 4 and 6 o'clock.Any input would be greatly appreciated! via /r/CCW http://ift.tt/2nSC1TO