I did 4 with STT at Midohio, 6 or 7 total. I really appreciated the dedicated attention, it just starts to suck when you're waiting to pass 3 or 4 slower groups per lap, and starting off every morning with three line drill, no brakes drill, downshifting drill. I did end up in the #1 group my first day and my instructor did recommend intermediate to all of us in the group, but I felt I had plenty more to learn there. I also crashed the first session of my fourth novice day, and told everybody that was why I was still in novice. If there was a structured program like that where everyone on the track was at a faster pace, I'd be interested. I've seen an attempt to run something like that simultaneously with an open format on track and it didn't seem to work out to well though. NESBA bumped me to Intermediate after 23 total days. Hope I fit in there, we'll see Saturday.