Is your OTWB holster a belt slide, pancake, or paddle. I a Blackhawk Serpa on a paddle that I've been using, and I love it except for it being rigid and uncomfortable to wear for a long period of time and it's a pain in the ass to take it off, but I like it because it has the best weapon retention of any concealment holster I've seen, it's a pain in the ass to take off making it very difficult for someone to get my weapon away from me. I also have a Wilson Combat Tigershark that I absolutely LOVE, but it makes a much larger bulge than does the Blackhawk in that the Wilson Combat is designed to ride a little farther away from the body. Problem number two with the Wilson holster is that the only retention system it has is a tension screw that only seems to increase or decrease the amount of friction on the weapon. There is not "active" retention system, and if anyone knows how a standard paddle holster is held onto the waist band, it's much easier to get that one off. That being said, I have a mild problem with IWB holsters being comfortable since I don't like to buy pants that feel like they could leave some slack in the waistband for the purpose of wearing an IWB holster. OTWB is sort of the way I'm leaning, but I don't want people to know that I carry. A buddy of mine said that even with the Wilson holster printing as much as it does under a shirt, the vast majority of people won't be looking at my waist band to see whether or not I'm strapped.