Quote Originally Posted by -HIC- View Post
Reaction time on a sportsman tree is .500 pro tree is .400, but on either tree a perfect reaction time will be displayed as .000 on your slip. In other words on a pro tree .000 means you are dead on .400 reaction time. Another way to say it is what is on your slip is how much you are over or under the perfect reaction time for a given tree.
B
At Texas Motorplex a perfect Sportsman light is displayed as .500 on the board and on the time slip. A .520 is a damn good light. Most other places display and print 0.000 as perfect. Some actually display 0.000 as perfect and print 0.500 as perfect on the slip.

Not sure if TMP does it that way any more because they built an 1/8th mile track close to home in 1995....