I'll probably only get 2 or 3 track days out of the Q3 rear on my 75-ish horsepower bike. The Q3's wear faster than the pilot power 3's did and I only get 2500 or so miles out of a PP3 rear street riding. The Q3's are sticky as hell though, I like em.
I have some bridgestone R10 takeoffs I'm going to try when the Q3 is done.