Here is a practice drag racing tree (this is for bracket racing, not a PRO TREE). Press the button once to prestage, then a second time to stage. A random time will pass before the lights drop. There’s a .500 of a second between lights. Hit the button again and see your reaction time.

When you’re working on your car and you need hardware make sure you get the strongest stuff you can get your hands on. Here’s a nice explanation of grade 5 hardware and fasteners versus grade 8. If you’re too lazy to read the full article then here it is: grade 8 > grade 5.

grade 8