I've read a lot of people are running a square setup - I was wondering if anyone has done a comparison staggered v. square to determine if it makes a significant difference.

 

Do a search, there is info in this forum already. Someone asks this question at least once a year. Square has a slight impact to aero (negative) but has more front end grip. most run square because they prefer the better grip as we don't need much aero help.

That and it makes it easier to rotate the tires and get better wear out of them.

 

Out here on the Left Coast I believe everyone runs square for the reasons mentioned by mmuller...

-CK