Kimber Custom Shop -- Ultra Elite II.
One of my most frustrating guns. It is really fun to shoot and is very, very accurate! But I bought it as a carry piece, and have never carried it because it is just not reliable enough, even after having work done on it. It is not a real jammomatic, but it jams just enough for me to not want to rely on it. I have put about 3,000 rounds through it so far and this is about what happens --- I will go 200 rounds, no problem, then it will jam. Another 100 rounds, then a jam. 150 rounds then a jam -- etc. And no pattern to the jams that I have been able to determine(the jam may be in the first mag of a session or the last or in the middle).
Everytime I think it is going to be good to go, another jam. Absolutely not a problem for a fun/range gun, but I will not trust my life to it.
However, it is just a blast to shoot, so I keep it for that reason.
I know that there are lots of people out there that have no reliability problems with their 3" Kimbers, Colt Defenders, etc., but after my experience with it, I would be very hesitant to buy another 3" bbl. 1911 with the thought of carrying it (I think they are maybe too much of a departure from the original design)-- my 4" and 5" 1911 style pistols will continue to be my carry guns.
As always YMMV