I was wondering if anyone can tell me what is the deal with having a matched Frame and slide on pistols so there is no wiggle room in them. I was reading about how some 1911s are matched frame and slide so I checked my CZ and it moves quite a bit compared to my Kimber, which doesn't move at all. Anyway I'm not sure if this is the right place to post this but I was thinking about having the rails duracoated to tighten up that gap. IF theres any kind of accuracy difference. Thanks for any info.