Mike,
Interesting idea about the reaction times! I've noticed that 1320go doesn't post the RT until the race concludes.
I did have a good friend who had a Suburban he raced in Sportsman bracket. His son would drive the truck and my friend would sit in the tower and call him on the mobile phone to let him know what his light was! Of course he had a lot of time as most Suburban's aren't that quick!
Lew