"Get yourself one of those pull-down spring checkers," he continues. "Check at least four different springs in four different places, and write it down in your log book. After your first race or warm-up, check those cylinders and write down your findings in your logbook. Continue that every time you run the car.
"What you should see is an immediate drop-off, a plateau, and then another drop-off in pressure after a period of use. As soon as you see your springs on that second drop-off change them immediately, because after the springs reach the end of that plateau they will start breaking. If you keep on top of it, you can just about eliminate spring failures during competition, but you have to be vigilant."