That was fun!! My CZ75 liked making those pins dance out there too.
I use very slightly modified polymer 35 round Isreali Galil mags, but I'm going to order a couple of the new Tapco Galil mags and see how they work as they have 3 US parts and are a bit less expensive.
I just wish there was a .22lr conversion kit for them like I have for my AR15.