Bowman Gray does it right. 4 or 5 divisions every Satruday and its always a features only show. They consistently start dead on at 8:00 and run the races off quickly with very quickly with very little downtime between races for Victory Lane cermonies. Modifieds are the class most are there to see and I think theyre usually the 2nd or 3rd race of the evening. I cannot recall ever leaving there after 11:00. Its not true that they get 17,000 fans every week but even on one of their off nights Id estimate they sell more tickets than most Southern tracks that run those 7 hour shows sell all year so Id say running a quick 2.5-3 hour show works. Its ridiculous to assume youre going to find enough people willing to be out until 3am every weekend.