Ron, How many races have you gotten out of a set of the carbotechs? Like Tim said we have had Porterfields, and were real happy with the performance, but I'm not confident we got great life out of them. It's kind of hard to tell cause the car saw mixed use with them (5-6 auto-x's, 2 pdx's, 2 schools, 2 race weekends), and we probably didn't really push the pads till the last two race weekends when they went from 3/4 meat to crumbling away. I think we would be in for two set's on the carbotechs, as I'd like to get a comparison. Your timing is good as it was time for us to buy anyway!