Another insurance-pointer for HPDE days:
You ALWAYS have to sign a liability release at some point when you enter the track and/or again when you register. Many of these boilerblate forms say something like: Printed Name.........Signature............Function (Or Duties or Position, etc)
Do yourself a favor and ALWAYS write-in "STUDENT" or "INSTRUCTOR." Never put DRIVER or RACER. If there is a dispute, and injuries are involved, those release forms WILL become important evidence of intent. Together with flyers and schedule, a mandatory classroom or participants meeting, and NO timing, and NO awards, a participant is much more likley to get an incident covered... Trust me on this?
Have Fun and Be Safe... I am off to TWS / Dodge Viper Cup this long weekend meeself....
JonB