I own a Classic Custom, first series. It shoots real tight groups, but it shoots them a little to the left. My Glocks all shoot dead on, so I don't think I'm doing anything wrong. The fixed sights are HARD to move (as should be expected), the thumb safety broke off, so I sent it in to Kimber for repair, and I am not really satisfied. The thumb safety used to have that positive "snap" to it, and when I got the gun back, it wasn't the same. The finish on it wasn't very good either. The pistol has had a few double-feeds, but no stovepipes. I use wilson combat mags, so i doubt that it's the mags causing the trouble. I have decided that this 1911 is for fun shooting, keeping clean, and showing to friends. My glocks are hard to beat, so I'm going to be a Glock toting man until I find a pistol that is superior, and by the looks of things, I won't find it soon.