Personally, I don't like the kimber or any of the other 1911 remakes. I just never like the way a 1911 felt in my hand. I would take a glock or a Sig any day over the kimber, or the USP for that fact. If you're having problems with double feeds on a glock, 9 times out of 10 youre limp wristing the gun a little bit. Glocks are highly succeptible (sp?) to that. Try a glock .45, like the 21, 30, 0r 36. the 21 is the full sized, the 30 the compact, or the 36 is the sub compact. We carry a 19 as our duty weapon, and are only allowed to carry a 26 off duty. The subcompact glocks are easily concealable, people don't realize that I'm carrying even if i'm only wearing a t-shirt. But getting used to a gun is all about training with it.

All that said, for off duty carry, I would get the smaller version of whatever it is that you carry at work. Same caliber. I wouldn't swap around too much, because if it comes to a life or death situation, you already know the weapon from your many hours of training, its just a little smaller, and all the controls are in the same place.