I prefer to run a lot of difference between R and L, something in the neighborhood of .100- .125, example, .625 left front, .750 Rf, then you hold the car up with the .625, and keep it up with the .750, puts a pre-load in the Lf bar, so when you pick up the throttle, it is ready to do some transferring to the rear. Has worked good for me for years. BTW, I think Clay is still doing some business, so you might google him, and see if his number is listed. Bob