I'm not familiar with this term, would you explain it, please?
Most tracks a perfect light is 0.00. I‘ll explain how that works. Most tracks have two sets of staging lights, pre-stage and stage. This shows up on the Christmas Tree at the top. The Christmas tree has lights at the top for pre stage, then stage, then as you go lower, three yellows, then green, then red. There is this set of lights for both lanes.
There are two light beams that go across the track, kind of like garage door opener sensors, that are low on the track. These are perpendicular to the track, The pre-stage is just a warning meaning you’re close to the start line, when you hit it the light blinks on, it means you broke the beam. When you hit the start line, the stage light comes on, you broke the beam with the front of your tire. When both cars are staged a starter starts the tree.
What you see as a racer on an amateur tree starting at the top is yellow, pause, yellow pause, yellow pause, green. Your front tire has to move enough that the beam has to shine behind it, so you have to move several inches for the light to shine under it. The time between when the light shines under your car and hits the sensor on the other side and the light turns green is your reaction time.
Say there is 1 second between when the beam shines behind your tire and the light turns green. You had a 1 second reaction time, not good. Say you have a good reaction time, your car is actually moving as the light turns green since it doesn’t trigger anything until the light shines under your car, basically the distance from the front of your front tire to the rear of it. A red light means the beam shined under your car before the light turned green.
Probably not a great explanation on my part.
