Neither--They're Both Over-priced ALSO--
Kimber's external extractor is JUNK!
Skip the 4" 1911s. Get a full-sized 1911. I have had, in total about 15 1911s, of all sizes. The 5" is most reliable. If you get a Kimber, get an ALL steel. The Pro Carry is also aluminum.
If you get a Kimber, get a Custom Target 5", with internal extractor. I can't speak to the Springer custom, but others who I know say no way. Like a coin, I am certain you will hear two sides.
Of my current 1911s, my Colts are most accurate and most reliable. There are others here who hate Colt and say that current ones are junk. Mine are excellent.
By the way, of the about 15 total 1911s, 12 were Kimbers. AVOID KIMBER. They are having problems.
Just my experience.
Doc2005