The only problem with the penny deal is it tells you when your suspension travel tops out & starts to pick up the tire that has topped out when you lift it up & not equilizing the weights on each wheel loaded. Seems the penny works if you know each sides suspension hits the end of its up travel at exactly the same time. On a touring car it would be affected by the accuracy of the droop screws on each side matching. I would think a loaded chassis on a good tweak board is better. R.W.