One other thing about body roll that I learned at Atwater:
Roll has its own momentum (for lack of being able to describe it better). Say I'm in a fast lefthand sweeper that has a quick transition to a fast righthand sweeper. With lots of roll there's not only the time it takes for the car to transition, but the transition also seems to require more traction. Tossing the weight of the car from leaning hard right, to hard left means that when it gets to the left, the tires will have to resist sliding even more because the car has more rotational enertia than if the transition was quicker.
...someone back me up on this.
