Just so you have a little comparison the Hoosier R6 lasts about 12 heat cycles, after that they are trash. The Nittos can not be heat cycled out, they can be run down to the cords with very little performance drop (average for us is about 30 sessions with them). The down side is the nittos are about 1-1.5 seconds slower per lap on our track. We use the nittos for all the testing and practice and the hoosiers for go time. Oh yea we also run 18 inch rims as nittos don't make a 19 inch tire. Also keep in mind with out enough camber in the front the hoosiers are going to wear really fast on the shoulders, you'd be lucky to get 8 cycles on them. They need at least -2.5deg.