Someone asked about the Wilderness 5 stitch and in-the-waistband (IWB) carry. My original post neglected to mention IWB.
I have had the opportunity to try out a couple of different holsters and come up with some thoughts...
CompTac CTAC with Glock 23: No problem what-so-ever. Very comfortable and usable. Wore it out to dinner with the wife without any concerns.
Crossbreed SuperTuck Deluxe with fullsize M&P: Same as above except that I didn't wear it out to dinner
C5Leather with Dan Wesson Commander (1911 with 4.25" barrel): This is a hard-body leather holster with a reinforced mouth and a loop on each side for retention.
This setup is considerably heavier and bulkier than the first two. It was noticeably easier to put it on as my Galco belts are so thick that it is often hard to thread it through the holster.
The cinching ability of the Wilderness was also nice as you can adjust it perfectly!
After about an hour of trekking around hills with my dog it felt that the extra weight caused the top of the pistol (grip) not to snug up against my body. Good thing that it cinches. Here I think that thick leather has the advantage of keeping a pistol snugly against your body.
Unfortunately, I don't have any IWB holsters for my bigger/heavier pistols, but I suspect it is the same - ok for short periods of time but for extended duration carry I would opt for the "CSM" (polymer lined) belt which is stiffer.