I run the 350's (more squared off tread) and have 1500 miles on them and they are wearing pretty good. My complaint is that they don't balance well for what they cost (2 replaced under warranty) and if they sit for more than 4-5 day they get flat spots until you drive them for a few miles. I was just at the dealer and they said they sell a couple sets a week and people like them, for me never again, on a side note I run 35's.