i always liked the way the hav-a-tampa late models started their races. they carried a big box with a green flood lights in it and the flagman had control of the switch. the drivers had to maintain their 2 x 2 position and kept the pace slow until the flagman turned on the green light. any jumping of the start relegated the offender to the rear of the event. the rows behind all fired when the man ahead of him did and there was hardly ever a bad start. that caution thrown on the backstretch is very dangerous especially with sprint cars on small tight race tracks.