Yes, I am a proponent of the Koni FSD's.
But, if sway/body roll is the primary issue, shocks are not the first point of attack.
Were a shock valved stiff enough to control sway, it would be WAY, WAY too stiff over bumps.
Sway bars-- larger diameter, stiffer bushings (polyurethane) controls sway without adding to suspension stiffness over bumps. Remember, if both wheels go over a bump at the same time, a sway bar adds close to zero stiffness. It is only when a vehicle sways that the sway bar comes into play.