Not sure what you mean. I've not 'only ridden a CV'. Where did you get that idea?
The point is - you can only get an idea if CV works, if you can ride exactly the same frame, one with and one without, CV.
You can't compare a CV XR4 to a non CV XR2, for example.
The Infinito CV is a comfortable ride, with 25s and under 90PSI. It's a brutal ride on my rough roads, over 100 PSI. Jarring actually. My S5 is just the same, it doesn't have CV in it but with the 25s on it's a muted ride too. Again, that's not a direct comparison though. Different layups, geometry etc.
You're right, not sure where I pulled that one from - my bad.
I'm not sure if its really possible to make a CV+ and a CV- frame because CV is structural. Would you use the carbon in the same way in the CV- frame? Possibly not...
I've heard the Infinito isnt amazingly comfortable... and the Specialissima is meant to be moderately harsh too. So thats solid evidence against my lofty CV claims above. Perhaps it is all smoke and mirrors. Nonetheless, I've got 23c Michelin power tires on Enve 6.7 clinchers and the XR4 is easily the most comfortable 'very stiff/responsive' frame I've ridden. The same holds for the ride with Easton EC90 Aero 55 tubs.