What Is a 400 Pro Tree

400 Pro Tree. This is the Pro Tree. With the “Pro Tree” you stage just like in the Sportsman Tree but the three amber lights illuminate at exactly the same instant and the green follows exactly . 4 seconds later.

What is a practice Tree race?

Today, many racers have found a way to fulfill their need for competition and socialize with friends by attending organized practice Tree events. … Each “race” is contested using a full three-amber Tree, and each competitor has the option to fine-tune their reaction times using a delay box.

What is the light called in drag racing?

Depending on the type of racing, all three large amber lights will flash simultaneously, followed four-tenths of a second later by the green light (called a Pro Tree), or the three bulbs will flash consecutively five-tenths of a second apart, followed five-tenths later by the green light (called a Sportsman, or full, …