i will second the kazillion pound press,,,,
friend has a kimber and he wanted to put one of the fiber sights on the front,,, after lots of cussin and a call to kimber!!!!! after talking to them i kinda got the impression they shear the sight in,,,how they can get that much pressure on the thing and not crush the sight or wreck the slide is something....
i told him i knew how to skin this cat,,,,put the slide in a fixture and run an end mill through the slot,,,,yep i wrecked the original front sight,,,but i got it out and put the fiber sight in and he was happy
sight press never even wiggled it
if you are going to replace the sights on your kimber,, the front one anyway ,,,good luck,,,,,i would bet you will end up milling it out
my .02
ocharry