Hrmph... from the latest update (Everyone already registered has probably gotten this already):
"If you are signed up for drifting it would be best to arrive about 8-8:30. There will be a driver's meeting at 9am. There will only be 50 people allowed to sign up. If you bring friends to sign up at the track, they take a chance of not getting in. Please have them sign up in advance. NASA membership is required, but at $35 it's a steal! You also get a $20 subscription to Grassroots Motorsports magazine so it makes it very worthwhile. We will be drifting pretty much all day so get ready for loads of fun!"
Am I the only one that didn't realize NASA membership was required?
Good thing I like grassroots motorsports.