When you say the car felt crappy can you elaborate? I'm guessing it wallowed in the corners and just felt kind of sluggish. I see the same thing on my SC10 on carpet. I think part of it is the layout of the track too. With our track designed like it is both of the sweepers are turning to the right and the left rear wears more on the outside of the tire. You know the ride height is going to play a strong roll in determining how much the car rolls. Maybe you could tinker with the ride height with your shorter link or lower roll center settings and see if you can make the car feel a bit less crappy.