Thanks for the reply greener. All the add ons i've done to mine are just to help the shooter, not the gun. By that I mean extended slide release, grips, mag well/ MSH. The rest of the items I'm counting as price comp to Kimber are my holster, duty belt, and mag pouches.
I'm coming to the conclusion (with help from a few knowledgeable friends) that it's the radial lugs on the barrel and how the barell was fitted. Changing anything to try to alter alignment of barrel will change how well the gun locks up into battery, and as well as it locks up any change with this barrel will just be detrimental. I'll just put a sight blank on the front, cut to needed elevation, and live with the situation till I get another barrel with taller radial lugs and have it fitted.
P.S.- thought about swapping parts with the missus', but got caught. She jokingly said she has her gun's serial memorized, and if the numbers don't match at the next shoot she knew a parts pirate that would lose another leg!
Actualy I'm glad her's is flawless, she's just getting into the whole shooting thing and I'd hate for anything to detract from her interest in it. Besides, I'm an eternal tinkerer, so even if my gun WAS flawless, I'd still be doing something to it on a regular basis.................