[CurtEgerer]

I can see both sides of the issue. First, if one wants to drive at 150mph+ with no helmet, cage, etc. on a closed public road where others are not in danger, why not? Not illegal to assess one's personal risk differently than others. But from an organizer's standpoint (and even, possibly, the State Highway Department standpoint), even the most tightly worded waiver would seem to be only a small hurdle to jump for a creative and determined attorney.