Testing results agains
Well I have made a "revelation" about this low CG stuff.
First a quick review of the CG theory. The CG of a car is located above the roll centre of the car. The distance between these two places determines how much roll force the car is subjected to. If you lower the CG of the vehicle the car will roll less given the same static damping, spring rate and suspension geometry.
Thus we all begin to see roll as the enemy and it must be avoided at all costs.
HOWEVER in some cases you need roll and sometimes lots of it. Weight on the tires is what produces the friction which produces grip. If your tire/track surface produces bulk grip you need less roll since the static or near static weight of the car is already producing enough weight on the tires for good grip.
However as the tire to track surface friction reduces (dusty and slick tracks) you need to jam more weight onto the vehicles outside tire to prevent the car from sliding. You want to balance the weight transfer so that the outside gets enough but the inside does not get too little.
Thus in this circumstance more roll through less anti-roll bar stiffness and spring rate is a large help.
Now with these lower CG cars they naturally roll less. This means that weight transfer is reduced (given the same spring rates) and in the case where you are struggling for grip it might be reduced too much.
I actually softened the suspension of my EVO and it goes far better on my lower grip track. Because of the lower CG you can go much softer springs and still not over roll on corners and maintain good corner speed.
On the old V1RR I was always goign harder springs to try and keep corner speed up. The EVO needs to be set softer than the V1RR for a give track/tire combo, but in fact retains more corner speed.
Sorry for the long post.............