[K Stubbs]

With the Matty box, after the first initial run to record data, you do not need to make another time trial. As long as the run is good (no tire spin, gear change malfunctions etc) The box records that data and uses it to determine the following runs ET prediction by counting the amout of times the engine fires compared to the distance it has traveled, thus the reason for the counter. It will tell you, by led, if you are going too slow or too fast. You can use nitrous, throttle stop, etc to control this. You can also use it on a footbrake car without a transbrake with a motion sensor that is available. In my opinion, with todays consistent bracket cars, like dragsters, the box would be less helpful. You still have to hit the tree and is appears many can do this and run the number.