Tall fry tires vs. Short front tires

No the clock doesn't start with the green light. It starts when the tire uncovers the beam. When I said the clock starts at the same time I meant if both cars have identical ET. The ET clock starts when the beam is no longer blocked. The reaction time is the time measured between when the green light comes on and you uncover the beam. .000 R/T means you uncovered the beam at exactly the same time the green light came on. Frustrations explanation is correct. The only difference between a .400 and a .500 tree is the time between the last (or only) yellow light and the green light exactly .100 It will take the driver .*** amount of time and the car .*** amount of time to react to either tree. If you're hitting .000 on a .500 tree you will be .100 on a .400 tree all else being equal. Since you can't speed yourself up , you need the car to uncover the beam .100 quicker on a .400 tree.
Doug

Well said.

Should we discuss the possible chance of yanking the front tires out of the beam,IE wheels off the ground ? Compared to roll out ?
Just spit ballin' thoughts.

2 cars with tall tires. One stages deep and one stages shallow. Both car start to leave at the same time. Assuming that the car that staged deep doesn't redlight, the shallow staged car will have a slower e.t. but a higher top speed as the car is already moving before it trips the second light. How quick your suspension reacts dictates how deep you stage. In the end, the guy that gets there first always wins. Slow reaction, stage deep, quick reaction, stage shallow.