I have three Kimbers, a 5" Custom Target SS Series l, a SS Ultra Carry, and a SS Pro Carry both series ll. Had a few problems with the 5" that turned out to be a magazine problem. Had to tweak the sear spring on the Pro Carry to reduce the amount of pressure required to deactivate it. The 3" has had zero problems. I have used the 4" & 5" guns to shoot single stack and limited ten in USPSA, the 3" has a couple dozen IDPA matches under it's belt. Haven't found any of them to be ammunition sensitive. There's been a bunch of Montana Gold HP and MBC 200gr LSWCs through them without any issues. I wouldn't hesitate to buy another one if I felt the need for another 1911.
The problem these days is everyone has rights, but no one has responsibilities.