Have fun at the track, have on mine. What are you planning to run for rubber? Have you raised the rear sets yet?
I'm running a 120/70 power cup evo and a 160/60 pilot power 3 rear. I don't care what the haters say about the tires being too big. I easily grind my legs off, and a friend with a slightly more prepped R3 (running the same rubber, and is an accomplished racer) safe he literally rides the bike as hard as he can on those tires, and loves them. Food for thought.
Ride fast, take chances!