I,ve been reading and researching as many different makes and models of mags for the 1911 that I can find. So far I've tried Springfieldk Colt, Chip Mccormick, and Colt. SO far, the Colts are the only ones to give me any trouble whatsoever. I just ordered a couple Checkmate Hybrids to try out. I know some use one make follower and spring and another tube. Which ones are your preference and why?