well you are gonna get a layer of rubber on your tires thats mostly from the track itself. everyone launching and doing burnouts, puts a decent amount of rubber on the track. thats and racing and everything does make the tires hot, and the rubber softer. thats why all the pebbles stick to your tires ike that. you should have seen my drag radials. i had to do a very small, dry burnout before going into the burnout box just to get the rocks off.