Wow... and I thought the CX-Ray were expensive at ~$3.75 each. Wheelbuilder.com has CX-Supers listed at $8.75 each. That's $455 just for spokes on a 24/28 setup.

So you won't lose the aero benefit (in fact, they should be more aerodynamic), but the weight savings is not huge, the stiffness will definitely DECREASE by approximately 17%, and they will cost you an arm and a leg. For that kind of cash, I'd think you would prefer the ENVE rims on cheaper spokes.