You screwed up the fit calculator.
Unless your legs are only about two feet long - which is not likely - there is no way you need a 61 cm top tube - that does not include the stem length, the stem would add another 10 cm to bring you to 71 cm.
I'm 5'10" with really long legs and a 56 cm top tube is as long as I can go.
Ride the S-Works and if you are comfortable, get it. It is a way better frame than any Caad frame. I have had both.