I might give the Koni yellows a try. I really like how the Z feels with the eibach front sways. I don't want to change too much though because I still fell the nut behind the wheel needs some more tightening.
Here's one of videos from this weekend. I was pushing the car hard and didn't keep up at the end. I won 1st in CS but had I not spun this would had been my best run.
Notsofasthands.mov - YouTube