Wondering if any P85+ or P85D owners out there have or have considered switching from there current staggered setup (245/35/21 8.5J front 265/35/21 9J rear) to a square setup (245/35/21 8.5J all around)? Benefit would be the ability to rotate tires. Cons are smaller tires on rear. Seems like less of a problem with the AWD P85D. My Tesla parts SC had recommended this as an option and I was wondering if anyone has tried this or has opinions? A second benefit for me is reduced cost, as I am looking to upgrade to the 21"s for a P85D I ordered with 19's for winter. The square setup is sold as a package for $5800 where as the staggered setup needs to be ordered individually and creeps up to $6800.