Bryan,
I would start off with the setup that John and Pete are running on their cars as a base stating point as I've driven their cars and they are really neutral and balanced.
When I drove your car, your car had a lot of foward bite, basically when you get on throttle, your getting an increase in rear traction. To me, thats a different feeling than a lack of corner exit steering. I would shorten the rear camber link on the inside, and possible add ballstud washers in the rear on the outside.