The idea of "super stiff handling" is just than, an idea. While some set up cars like that--I don't. I sell Hotchkis, and Bilstein (SLP, HD's, and a set that I use a different rear shock in called Strano Spec too).

Ask anyone, who's been in my car, or a car that is setup my way, and very often they'll tell you it rides better than stock. Not softer, but much less harsh. And my setup is meant to turn, but has to work over not perfect surfaces as I drive on not perfect surfaces.

I wish it was better understood that "handling" and "stiff" are not mutually exclusive. That idea seems to hang around no matter how many folks find out otherwise. In fact you can have a lousy ride and bad handling too.