I have a Pro CDP II and my wife has an Ultra CDP II. Both have external extractors and both work well. The 3" isn't much more concealable in my opinion. It seems to be the hammer and the adjacent portions of the gun which print, not the extra inch of barrel. Therefore, I opted for the 4". For times when I can't conceal the Kimber, I opt for an XD subcompact. That seems to print less than the similar sized Ultra. My wife however, wouldn't trade the Ultra for the world. She carries it in a fanny pack and swears by it.