I got my 2005 Base, SB exactly two weeks ago have put on about 750 miles. The outside edges of 4 tires worn out very rough. When I run my finger on the outside and inside edges, it was not smooth, and I can see the rubber got chopped up too; not like a big chunk, but definately noticable. So I took the dealer and had the aligmnet done, and was told the alignment was out of specs. So get your alignment now before it's too late. and hopefully this is not he infamous tire feathering problem.