 Since it is already on the pedal you can concentrate fully on starting and getting out of the gate a second sooner than anyone using a one pedal start technique.Ironically, the sanctioning bodies in the early 80's to cut down on gate jumping by those using the two pedal start who could time the cadence of the gate lights because it fell at a set period of time every time (they use starting lights much like those on a top fuel drag racing drag strip).In 1985 the ABA switched to dead man gates in which the green light didn't light and the gate fall in a predictable fashion making timing the gate difficult (the gate still fell the instant the light turned green of course).