By moving back the CG you can get the plane to make slower approaches. If you hit the runway at a slower speed, then naturally your roll distance will decrease. It has been my experience that most guys never explore the planes' CG range and some unwittingly will fly the plane slightly nose heavy. The aft CG location can be sought out intelligently, this advice doesn't have to be autotomically condemned as some sort of evil mojo.

In fact, your approach technique can change to shorter and steeper, instead of long, low ones.