I don't see why not...though I'll be suprised if anyone does that. If they normally run on street tires, and go to race tires, I would be suprised if they can keep up. For me, at least, it took a few events to get my mind around the fact that these tires grip like mad. I found that I overbraked WAY too much.
I can't speak for everyone, but I am not one to cry 'foul'. I just want to compete, and have fun. It is a 'Pro' class. Pretty much anything goes. I am going to be in GS trim, but don't expect everyone will be.
