I'm curious as to what prompted the change to accept quads at your track? It was my understanding that they were not welcome at Circle T. If memory serves me correctly there was a large group that tryed to go there last winter and were turned away in the parking lot. Heck, there are alot of locals around here that are driving to RamJam and Earlywines because of that perception.
Has the track been reworked to be more quad friendly? I remember early videos of it being pretty aggressive even for novice bike riders.