Originally Posted by CanAutM3
I guess I will retract my earlier statement. After doing some reading, it seems it is better for toe to remain constant troughout the suspension travel. This makes the car more predictable as loads change (front to rear and left to right).
+1 - main reason why race teams use rigid bushings/monoballs everywhere. This way you only worry about "static" alignment settings, not "dynamic" alignment settings. However, as others have stated, alignment setting change with increased loading, and having these various load-deflection curves are useful.