Sounds like an attempted boondoggle fail. Wouldn't it be cool to buy your "worn Out" Kimber for a monster discount or $1 if you retire?
As I understand it, the shorter your 1911 barrel, the more likely you will have problems. Was there any testing done prior to the bulk purchase?
I'm not a Sig guy, but can you actually wear one out from 2003 to 2010 in normal LE use?