For those of you that have run track events (any road race type track-not just willow springs), what is the tech inspection procedure for this type of track? I don't want to make the long drive (5+ hours) there to discover I missed something small on my car and I'm not allowed on the track. Helmets? Open ended lugnuts? I've only run at drag races and a couple of autocrosses many years ago so what has been your experience??