@Eric, we have pretty much been racing an FF class at NorCal at every single on-road race day since the end of May. It is a small class, usually 4-6 people tops, and will probably remain that way judging by the turnout at the Team Powers Cup recently. So far, it has been either FF03, FF01, and T.O.P. Sabre as far as chassis goes. The fact that an FF01 (my car, but under a much better driver), can mix it up with the newer cars shows just how close the racing is--it's the complete opposite of 4x4 Short Course racing--very tidy driving (much cleaner than even F1 from my experience-I race in both) and cars are typically nose-to-tail for at least half the race. The only spec is 17.5, Blinky ESC, and rubber tires.