I needed another 1911, and this came my way with two Colt magazines. Now, I want three more, but Colt mags are prohibitively expensive. There are lots of other makers, so I'd like feed back from other Colt 9mm owners. Are there any that have not worked well for you? I'm leery of brand specific ones, like Kimber, Ruger or Sig, though I know their quality is fine. I just want reliable, universal, stainless mags.