in terms of durability the cap-sandwich-sidewall construction is way more forgiving than the normal sandwich construction. The edges of the topsheet are sharper on the sidewall-construction ski (like your voelkls), so everytime a edge so much as only touches the angle there will be a notch.
Armada and Atomic Skis (and other brands as well) mostly have that cap-sandwich-sidewall construction in their skis, and this helps a lot with chipping issues. There still are going to be notches in the blend on top of the skis after hitting them with some power, but they will resist a lot more than normal sidewall skis.