I read a couple different write ups about setting up a car for a track. Both write ups said there are a lot of guys at the track that really don't know what they are doing and use 4-corner scales to even out the weight on each wheel. With long explanations they described how this can really de-tune a suspension and make it worse. They had a whole series of procedures to getting a suspension tuned which may be worth looking into. It's more deep then what I have gotten and can't provide much useful other then they both made it very clear 4 corner weighing is a good way to mess things up.
Gary
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