I'm considering swapping out my rear wheels/tires (265/25R21) on my P85+ with the same size as the front, (245/35R21). That way I could use the much cheaper, and better Michelin Pilot Super Sport tires. They are rated better in wear life, handling, braking, and comfort compared to the Pilot Sport PS2s I'm using now. My overall goal is to get better tire life, and this way I could rotate them regularly. Has anyone done this? Thoughts?