Cane & JD, thanks so much for the great advice here. Finally an update (sadly) and some pics... First the pics:
A group photo, out with some friends in the desert last weekend:
And my buddy firing the 460:
And now the bad news: The gun first went back to the gunsmith because the slide locked back (wouldn't return to feed the first round). The guy had to file a bit of the slide release lever off to allow the slide to come forward. The bad side effect was that the slide wouldn't lock back after the last round (it always returned forward no matter what), but at least I was shooting...
So I took it out again a couple times, and the first round was always difficult to chamber. I tried a few different magazines, the Wilsons never gave me FTFs except on the first round, but always difficult getting the first round in, no matter what mag I tried... But at least the gun fired still.
Then the new Novak rear sight got completely blown off. Back to the 'smith again, he had to drill a larger sinkhole and add a drop of Locktite to get the sight to hold.
And finally last weekend my buddy was shooting it, we had gone thought maybe 50 or 60 rounds, and the slide release lever and detent pin (the pin behind the slide release) came completely off and out halfway through a magazine. I found the slide lever but never found the pin. I ordered another one from Kimber this morning, and another slide release lever.
So, I'm beginning to think I'm just going to convert it back to 45, it seems either the parts can't hold up to the round or the gunsmith can't handle the job. BTW he was the only person I could find in my area that would do the work for me (remember I also added an ambi safety, magwell/MSH, trigger and new sights).. This is a brand new beautiful Kimber and I don't want it taking any more of this abuse....
What do you guys think?