I got a flatter footprint at about the mid 20s psi range but still a pretty round tread face. 30-35 psi kept me totally on the center treads. These tires want to be pretty round on an 8" wheel. I think they need to be on 10". Your duratracs are pretty flat on a 71x9 aren't they?
yeah my Duratracs are pretty flat across the tread on the 17"x9" wheels they are on.
