The Sportsman Tree you hit "Stage" and the three amber lights and the green light "march down" in sequence at .5 second intervals. The goal is to anticipate the "green" and be as close to the .5 second interval as possible. Anything under the .5 second interval is a red light. Press the "stage" button, and the yellow pre-stage and stage lights will come on.

Press "Go" after the last amber light and your awesome if your reaction time (DRT) plus the vehicle reaction time (VRT) is exactly .5 seconds later. You have the RIGHT lane.