I'm looking for a Cross Draw holster with a thumb break. Any options? The reason: I deer hunt in the north a lot and mostly walk difficult terrain. When I carry on my strong side at 3-4 o'clock and sling my rifle, my stock bumps my Glock and makes noise. So, I want a CD holster with a thumb break so I don't have to worry about losing it while traversing tough hills/rock when using an open holster.