I've only been there once. It was Summer of 1981, some national event, long before Turn 1 was turned into several tighter corners before going up the hill, traction control, and ABS brakes. The hillside along the left hander after the Corkscrew was just grass, lawn chairs, and blankets. I was on leave while in the military at the time. I was with my cousin and my little brother, we gained unfettered access into the pits, and roamed freely among the killer race machines.
Beautiful day, great turnout, bitchin racing.