Under OSRC rules there was a 20 or 25 point penalty for stickies. There is no penalty in Sportsman C. I would honestly prefer to have DOT tires and not take the penalty as I don't think stickies matter much on those courses. But alas, having a spare set of 37" tires and wheels for one event is not easy.your CJ is the perfect "cheater" rig IMO. and i mean that in a good way. It fits Sportsman C and DCRC "stock" class perfectly. The only thing i would argue against is the stickies, but i believe there were penalties in place to account for that advantage.
the confusion was that other VERY similarly built vehicles were in the other group, but it wasnt clear why.