I'm sure the STAC/CRB is opened minded on it - after all, we want to get it "right" - but I'm just not sure how that's really any different. Whether you pick a weight and then a TIR then reduce the TIR by 2mm for AWD/RWD, or if you pick a TIR then the weight then reduce the TIR by 2mm, what's really the difference?

We just want to ensure the intent is clear: regardless of what line you pick, if you have RWD or AWD you'll have to use a TIR that's 2mm smaller based on the minimum weight of your car.

GA