A agree re the long down times between races. This is something I really noticed when I first went to a UK historic racing event in the early 1990s. It was the Silverstone Classic. The time between races was LONG! And really nothing happened between the races. It was just dead time. I find it strange given that most events in that part of the world only allow one race per class. There must be a better way to do it that offers more track time for racers and more for the spectators to watch. I guess its just the way its always been done.