I rode a bike this past weekend with the cables crossed like this and think this is the best routing for the cables, they don't rub the frame, the cables turns seem smoother and there is enough cable to allow free turning of the front wheel. just make sure you have those little rubber donuts on the cables to keep them from making noise on the frame. I just can't see how much junk under there is needed to gum up the cables...as with all the exposed cables, it should be checked and cleaned on a regular basis.