I've got a suspension/ride height questions... I've recently had to rebuild my front suspension following an accident at Mosport in my Jetta.

The suspension is the following:

Front: Koni Sport Adj, Afcoil threaded coilovers with 550# springs
Rear: Bilstiens with 400# springs

I'm wondering how one should determine one's ride height. Where to measure it from? What I should likely set it to for best results? Of course, this also may require the car to be corner weighted too, and I can get that done locally too.

Ultimately, I know that the lower a-arms should be flat to reduce bump steer, so I don't want to lower the car too much. I know that SCCA IT classes prevent much playing around with suspension components, but has anybody developed anything to allow better geometery? I have seen some people run a spacer under the ball joint and flip the steering rack rod end to be under the steering knuckle instead of on top...

Any ideas/suggestions?