I need your opinions for my Glock27. Does Kydex wear noticeably harder on the finish than leather? and is an open ended, exposed muzzle good, bad or indifferent? After all my reading, it dawns on me, some OWB are said to be very concealable plus dual function. I was ready to order a Don Hume H715 but couldn't find it. Just tell me, I'm going in circles..thanks.