Originally Posted by Gearhead999s
Our fastest tire setup was always the new shaved to 2/32's(minimum tread depth by the rules) that we used for qualifying or a short race where the tires would still be quick and not be corded before the end of the race.If started on 4/32 with a few heat cycles on it became quicker as the tread disapeared with our fastest laps usually at race end ,but remember this is a single session with no further heat cycling.
Even more interesting to hear they either retained their grip or possibly gained some grip as the tread wore down (in the absence of significant prior heat cycling as you point out). How much tread would you say you ended up with at the end of the short or the longer races? In other words, how close do you think the tires were to being corded?