i dont know about the acceleration to the cone deal....i usually drive right over them. but only thing i can give you is take your time, and be smooth. on the tires issue i have no clue. you drive a civic ex, so id ask JRSCdSi, he had a civic si, so im sure he'd help you out. i personally run 43 psi all around, cause its the set-up i like best..when you go to autox just set the tire pressure, and make adjustments as you feel needed.....