I have carried a glock 17 and a 22 in a wilderness zip slide for some time. Just bought a 20 and got my zip slide today. This is an awsome combo. I wear a Dickies work shirt and cargo shorts for summer work uniform and with the shirt tail out, you can't see an outline at all. I have nothing bad to say about the wilderness zip slides. Has anyone used this combo? I am open, is there a better rig that can be removed as easily? I drive a lot on my job, and I like that I can move the slide from 3 o'clock to 5 o'clock very easily. I am impressed with the comfort of carry of the big 20.