I've not signed up this year, but have done so a couple times in the past. Event was WAY oversold. usually a MINIMUM of a couple hours between runs, if you IMMEDIATELY get back into line.
I think i got 3 (4?) runs in and waited in line the entire day for that.
I will never say never, but there are MUCH more palatable (albeit more expensive) private events. The Skyrex Mojave event (3 or 4 years running?) pops to mind. zero waiting. Small crowd. There's also an event in Vegas coming up. Same deal. I got 18 runs at my last one, INCLUDING taking a 1 hour lunch at a nearby Denny's.
Heck i'm impressed they had a wait list. I thought they just took all comers.