Can you put your name on the security list just to make sure you could get in when the time comes and then hold off on payment until the day of the event, or do you have to preregister and pre-pay? My pocketbook is a concern between the Auto-X school, the TRack day I just signed up for, and the associated car expenses. It's all got to come out of a 12-hr-a-week part-time student job budget.
If I can just put myself on the list now I'll do so, and make the final decision on whether I can afford it right before the event.