I have a set with 12,000 mi and 9 track days on them, one track day left and they will be replaced with Rival S just to see how much quicker Rivals are. If they are not substantially quicker, I will go back to comp 2's, suspect they are hard to beat for overall dd/tracking value.
I found them noisy on way home from tracking, more from Sebring than PBIR, but the cupping wears pretty fast, couple hundred miles of street and they are fine again. Maybe possible to cup them with very spirited driving on street, not enough good roads around here to find out.