Just let some air out. I use to run my shinko at around 20 psi, and was spinning if I came out too hard, and that was with a 4 inch stretch. Talking to the mechanic at racer's choice and he told me to drop it down to 14 psi. Cut my 60 ft down into the 1.5"s from high 1.6's. Test and practice, all about getting better. It's not as easy doing 1/4 mile as a lot of road racers believe. Now I run in the 9.50"s at a 146 mph, no Nos, but a mild 1397, and I'm just an average rider, but getting better. Just need more seat time which is of course,,,more funfunfun!