ArizonaGT said:I think the real question would be to test the durometer of the tire before and after scraping, and compare those figures to a new R6 or similar tire, for reference.
I'm really contemplating whether I want to buy 3-4 sets of sticker (but old) 285/645 Rolex GT-Os from Hoosier Discontinued stock or just get 5 sets of 305/645 P-Zero slick scrubs...pricing is pretty similar.
I've picked up a set of the sticker 285/645 Rolex GT-O's and plan on pick up another two or three sets for next year. I met a few people on the track and as they said, "you have how much $$$ into this car and your using used tires with an unknown history?" It is hard to fault the logic. I figure I'll double the track days off new tires saving on mounting costs, plus I'll know the history. Just my opinion.