I know that rotating the tires on a P85+ is not usually possible due to the combination of directional tires and staggered wheels. However, my rear tires (265/35R21 Michelins) are done and I plan on replacing them in the spring with Pilot Supersports (245/35R21). This would effectively return my car to a squared setup, which would normally allow front/back rotation. Even though the tires would now be the same size, the wheels would not be. (8.5" front vs. 9.0" rear). Would this difference still prevent tire rotation even though the tires are now the same size?