Have used Crossbreed and Alien Gear cloak tuck 3 over the last two months to test. Crossbreed functioned as expected, the one drawback I saw is that the leather backing covers the magazine release, and during normal wear I had the mag pop twice, a bit of cutting would eliminate that, other than that, it was as well made as I have found all products from them. I was impressed with the Alien Gear product (my first), and started wearing it exclusively with the cz, not completely sold on the polymer clips that they recommend, but still using them, and time will tell.