CX rays are not stiff spokes. Anything that thin is going to compromise lateral stiffness.

Sure, they will be stiffer than sapim supers, but CX rays are just flattened lasers, and that would definitely not affect its modulus. CX rays offer the same lateral stiffness as Sapim lasers, which would require more spokes than a wheel with less aggressively butted spokes to maintain the same stiffness.

I would wonder what would be more aerodynamic. Fewer round spokes, or more bladed spokes. Interesting stuff.