Spinergy Stealth PBO

[Camaro454]

I have admired the "roar" of carbon wheels for some time. I use Ksyrium Elites at the moment. Im considering Spinergy Stealths (with white spokes, off course).

What is the real-life difference between the different models (mainly "basic PBO and FCC)?

Any difference in the sound?

I dont race (too slow) so a 100 grams is neither here or there.

Patrik