A good friend of mine who is one of the best bracket racers in the country told me some years ago "who cares about 60 foot times when the win light is at the other end of the track?" I always thought it strange how tire spin will increase the MPH at the finish line, its kinda like getting a running start at it. Personally I never cared what my 60 ft times were as long as they were the same in either lane every time.