Sometimes I think super quiet tires, when they make noises, reveal sounds we normally wouldn’t hear. I’m pretty surprised they can keep that tread pattern quiet on the CC2. That said, we have them on a CRV, which is a noisy ride. The tire noise is the lowest we’ve had on it, tho they growl a little when stopping. I’ve not heard the kickball sound on them that I’ve noticed, but I’ve heard it with other tires and just saw it as a characteristic of the tire, assuming were talking about very small sounds.