Hi, I have a new Talo Special Edition EXO G27. Bought three factory 22 round mags for it. They all work great except they only seem to like to load 21 rounds. The last one I have to force and it doesn't seem to seat well. So for now I'm just running 21 in them (which is really OK with me). Is this just because the springs are new? I'm leaving them all loaded with 21 just to see. Please advise.