I carry a glock 23 or glock 35 owb either in a fobus paddle holster or galco leather holster. I like the ease and comfort of the fobus but don't care much for the retention.Ive been looking at black hawk SERPA holsters and was wondering if anyone uses one for a daily carry setup.I usually pull my shirt over the firearm and I don't think anyone notices is the SERPA concealable?