C5 Z06, my first day ever on Michelin scrub true slicks, up from aged Hoosiers. Tires getting too hot and greasy. Chasing tire pressures all day, dropped all the way to 18psi to start, Love these tires off a World Challenge team car. Z28 and C5 racecar bang tires in the carousel, no damage to either car! NO NANNY CONTROLS, my pet peeve. Many thanks to NASA for an extremely well run event during Wuhan virus.