We've been running the originally stated USGT rules (21.5 open) with the exception of tires (X patterns only). That is how our class was designed before the rules on this thread were stated and we just haven't switched. It has rivaled VTA for numbers here in Omaha and has really thrived with solid A and B mains almost every outing. Most VTA guys picked this up as a second class and the speeds are faster yet still reasonable for guys still gaining experience. 17.5 I don't believe would have given the growth we experienced with this class. We have also had FF03's running with us and though they generally aren't contenders for a win some have been able to make the A.

I'm just stating this as a comment from the view of how things are working at the HobbyPlex in Omaha. See ya at TCS in a few weeks... oh wait wrong thread...