Most people who shift on time while throttle stop racing go on the stop from .000 to .300 and shift out of 1st gear around .5 seconds, come off the stop in high gear. When you are staging the car if you flicker the light and hit the trans brake button, when you come off the button to re-stage your timer will shift in to 2nd gear while you are re-staging and the transbrake will not hold in second gear. You HAVE to put the shifter back in low gear before you stage again. If you don't the brake will not hold and you will roll the beams. As long as you dont have to hit the trans- brake a second time there is no problem.