I have a .45 cal STI, and would like to know what the best mag capacity I can expect out of it, and how to get there. I am using 140mm with dawson pads, and factory followers. Most I can get is 14, would like to know if I can do better. I know I need a .40 cal, I am saving for a Fatfree 6in, but for now I will have to keep shooting the .45. Thanks for any advice.