I was reading all of the posts about the marring of the aluminum frame Kimbers, everyone seems to think it's coming from the split metal follower of the stock magazine that comes with it. I just bought my Kimber Tactical Custom ll, went to the range (before I read the posts), and put my first hundred rounds of WWB 230gr. I just went to the garage with my sweet Kimber in hand and noticed a slight marring in the very place everyone was discribing! O.K....after careful examination, I came to the conclusion that it wasn't coming from the metal follower lower tang, because there were no discoloration on the tang at all. There was a "marring" on the lower cut out of the magazine, in the exact spot!! Could this be because of slapping forward during the feed process? I will call Kimber tomorrow and ask them, then post to all here. Gary