they tried that heads up junk when 75/80 re-opened. they had 9 second 10 second....14 second classes. it was ll heads up, didn't last. nobody went and you either had to sand bag or spend extra money to make your car faster. It's just not practical to have that kind of racing all the time. Maybe a few events here or there. But you have to look at it like a track owner, bracket racing brings more people to the track.