I have a Thunderware holster and use it almost exclusively in the summer when wearing loose shorts. I use the same rig, without alteration, for my Kahr K40, Glock 22, and S&W 4" M66. The only problem I ever have is while running with the Glock or the M66 I get a little wake-up occasionally, and when reaching into the bed of my pickem-up truck with the tail gate down. THAT can create a significant problem. :eek: :eek: :eek:
Other than those two instances, I never have any problems at all.
Also, when on vacation in non-carry states, the rig does double duty as a money belt/folding knife sheath.