I run the "good" rotors that Advance sells. I've never gotten a full season out of any rotor, these are cheaper and last as long as Napa's best. Hallett is a death sentence to any parts store rotor. I showed up with brand new rotors this year and at the next event both rotors cracked. Typically I show up with rotors with a couple races on them and they die at Hallett. 2 piece rotors is on the to do list because I'm sick of keeping an ear open for a rotor about to let go in the pits.