I dont know dude.......that last run I made where I got a 9.66 was prob. more typical......the 9.51 I think was a freak run........after that one I never could get the traction I got on that run.......btw after we left the track.on the highway the first time we "let em loose" I down shifted to 3rd and you pulled hard on me,the 2nd time I went to 2nd......