Everything worked well yesterday except for excessive wheels spin. Night time temps in the 30’s track very slick. Started at 44 PSI and gradually dropped it to 36 PSI. Tried non launch control start, added .3 of a second. Best time 12.07. Everyone slipping, some two wheel drive cars even getting a little sideways. Density altitude at time of this run -55ft. I’m running 295 rear and 265 front Michelin PSS tires. On way home from track tried one launch on street, same, wheel spin…darn!