2-bad,

Try setting the front ride height as low as possible. I have a nagging suspicion that may also help to reduce the wandering along with massive toe out on the front.

My understanding is that the car hops because the rear is gripping up. Personally i like a lot of rear grip so it doesnt overly bother me when i see it, but the fast drivers would drive with less rear grip than i do and in turn their cars rotate better.