Definitely one of the advantages of the current RR is no shaving. Shaving adds cost and significantly reduces the places available to purchase. I think a rule that tire shaving isn't allowed would be fine. We already have rules that are hard to police (including using tire treatment on the current tires). In order to cheat the no shaving rule, you would have to buy shaved tires and then run them hard for a while at an event where there aren't any other competitors to see what you are doing. If the tire grip doesn't degrade with use, this would likely be a big hassle and a waste of time.
Of course, the big disadvantage of the current RRs is that they don't work as rain tires. You need an extra set of wheels with a special set of tires (that are probably going to dry rot before you get to use them) to be competitive when the skies open up. The difference between the haves and have-nots is huge in a downpour. You also have the game of guessing what the best tire is when conditions are changing.
255s sound good to me. $600 every two events vs. $1100 every event would be a serious game changer in overall racing costs. Also, your rain tires would just be the next set of fresh tires that you were going to buy and use anyway.
Richard P.
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