[TerryS]

I called Andy Mark this morning. If you want to make a square configuration by cutting two inches off of each end of the side plates and placing the wheels into the pre-drilled axle holes two inches in from the long configuration holes they recommend buying the 160T, am-2266 belt. This will give you equal wheel spacing.

Andy Mark hasn't tested this configuration yet, but they plan to soon as they've heard that a lot of teams want to be square this year.