He is correct, the newer ones are a bitch to break in, which is why I suggested Clenzoil and not taking it apart for the first 150-200 rounds. The older models had more hand refinements and thus were more reliable and accurate. When I say older, 7-8 years.
nonetheless, great gun. I urge you to heed my advice about those magazines, though. Trust me, I would not steer you wrong in terms of a defensive weapon. Let's put it this way.... I personally never witnessed anyone with a Kimber win a competition with stock mags. Look at the follower design. POS that throws the round out of the magazine whichever way it bounces. without a polished chamber, this is BAD. Even with one, it is not great. The design sucks and puts people who don't know in grave danger. Promag, CM, Novak or Wilson Combat make great ones that work when it matters. FTF sucks when you have a nice gun, especially when it can easily be prevented.