My first brooks was better than OEM right from the start, but not really comfortable. After 150 miles it felt good. After 400 miles, I didn't feel it at all, which is what you want. If you've got 800 miles on it, and it isn't right when adjusted right, it just isn't for you. If you got it from the right internet dealer, whose name escapes me, you are still under dealer warranty. Send it back for full refund less shipping costs.