On oval and to an extent the "cross weight" is very important at a cars performance will change a lot by going from say 50.5% to 49.7% not as big a deal on road course,and naturaly measured with the driver and fuel in the car.
If you have identical LF & RF and the same at the back you will infact have 50.0% cross weight.Try changing it to a bit heaveir RF ,LR and see the change.
NASCAR do it by the adjusters in the rear window and CART cars have a driver adjustable system,you wouldn't think a that such systems would be in place for nothing now would you?.It does work and can be checked by turning on just two scales at the display and seeing the percentage.
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