Shock absorbers have NO effect on steady state body roll. Shocks are purely transient damping devices that provide a resisting force proportional the the velocity at which they are stroked. They can effect the rate at which the body rolls when you pitch into a corner, but not the steady state roll through a sweeper.

The Bilstein comfort shocks should be calibrated equal or near equal to OE. Mercedes probably has the best ride/handling compromise for normal street and highway driving of any sedan built, and I would not install the HD Bilsteins unless you're doing some serious racing or rallying.

Duke