One of the best winged sprint car races I saw last year (on FLO) was the Eldora Kings Royal week Wed night High Limit race. I'm 99% sure they spun a 7 on their wheel, inverting the top 7 for each heat. Just remember watching the winged guys have to fight their way to the front. Insane passing. I want to go over to that race this year. But just my luck they'd spin a 1 or a 2, eliminating all the intense passing to get to the front.