..since the 1970s...did today with a Combat Commander.
When I was visiting out west in 2013 and 14 mostly carried a S&W 57 4"...rarely had a holster on. Just slipped inside the waistband butt forward behind my left hip...gun just disappears..
Only reason I started using a holster in 2007 is that when I started carrying a Commander with a front night sight it started wearing holes through the seat of my jeans under the left rear pocket...
Bob