With your soft springs it'll never be balanced. You need a TON of front stiffness to keep roll under control, and then you can crank the rear up until you're close to lifting a wheel. For a setup like yours it's just about keeping adhesion on the fronts as much as possible, and ignoring the rear. Do you have a camber kit? Camber makes a bigger difference than anything else. It just takes a moment to throw on a couple degrees at the event, and I had no problem getting it back to stock to go home.
