I have a practice tree im 58,so im getting killed at the track by reaction times
You need to concentrate on focusing for the starting line I've been through this more than once, I've raced at the track since 1964, wait until you get old and have to worry about age related brain issues FOCUS,FOCUS, FOCUS on that bulb, no matter which one your using
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
FOCUS,FOCUS, FOCUS on that bulb, no matter which one your using 
