I have an older (about 10 years old) Kimber Ultra Elite. I think the CDP is the closest to my older version. In this post about choosing your firs 1911,http://www.firearmstalk.com/forums/f57/choosing-your-first-1911-a-21860/ a comment is made about NOT getting a Custom II or any Kimber with a roman numeral II in the name. Can you tell me what the difference is between the custom vs the custom II and where my older ultra elite falls? One day I would like to get a 4" Kimber to add to my collection and am trying to educate myself with regard to how the different models function. Thanks!