I'm interested in going 'square', away from staggered, in the hopes of having better performance year-round. I'd like to hear what works well from some of the many folks who have 8.5" wheels and summer rubber all the way around. 255 max? I also imagine the X-Sport crowd has lots of experience with branching out from the stock 225/50/18 size on their 18x7.5s. Perhaps a higher profile is tolerated. I have a stock '07 G35S.