[Alan Roehrich]

That's a nice looking set up.

To carry what Bill said further, regular two wheel bars will try to steer the car unless it leaves perfectly flat.

Anthony was in a huge wheelstand at Memphis, and the bars steered him right into the other lane, even though he had the orange wheels that are not supposed to steer the car. At a certain point, the car will no longer be flat and square when it gets really high, and all it takes is a little bias to unload one rear tire or the other slightly. Once it starts, it only gets worse, and fast.