Just picked up this CDP in a trade, it belonged to a friend and has spent most of its life in a safe. The gun performs flawlessly. I have a couple questions. 1) What's the difference between mine and CDPII? 2) what are some things to watch out for? Example I've read things about the recoil springs and mags. Right now I have a Kimber mag and a Wilson combat. This my 1st 1911 and Kimber so all advice is welcome. Thanks!