Are you there for the Ron Fellows Corvette School?
I would like to drive Spring Mountain one of these days... haven't had the opportunity and a lot of their calendar is taken by the Fellows schools.
Another desert racetrack: INDE Motorsports Park in Willcox, AZ
I was in the class on Monday and Tuesday. What a great experience, well worth the money. You stay with the same car all the time there.
The instructors were fantastic, every one of them.
The track we drove on was, if I remember, 2.3 miles of twisties with a few short straightaways.
Lots of other shorter events, figure eights, skid pad, autocross, launch control.
The skid pad was interesting with the nanny electronics shut off, then back on. Weather mode works great in iffy conditions.
I would not do launch control (left foot down hard, very hard on the brake pedal, right foot pressing the gas pedal to the floor, then releasing both at the same time) on my own car but it was fun on theirs.
Learned a lot about the electronics of the car for optimum performance.
It was darn hot, 95+ every day. But a dry heat.
Spent 3 more days @Caesars in Vegas. A fun trip, eating our way down the strip.
This guy took me on the track as a passenger, he had me white knuckled the whole way.

Forgot to mention, you get a 32 SD card with all recordings for all the excercises. Track, skidpad, autocross, etc