USAC doesn't schedule support classes the tracks do. I agree though. I think the people who have suggested starting later have the right idea. The only problem I see is with time zone we are in it doesn't start cooling off until after 10. As for me, I will go anyway. I would be working out in the heat anyway. Guarantee I will be more comfortable at the races. I am 56, diabetic and a stroke survivor, so I can definitely relate to all who have concerns. Remember the time to hydrate is before you go out in the heat. Then drink plenty to stay hydrated. This time of year I try to drink at least a gallon of water every night. Everybody have fun and stay safe.