In reply to Tommy S.

That is exactly correct. You want the cable not being pulled to maintain the same tension or slack a little. You don't want that cable getting tighter. It all has to do with where the pivot point is in relation to the hinge line. I have read many peoples' opinion that slack in the non-pulling cable will cause control surface flutter. I don't think it can happen. For flutter to occur, the surface has to either move against the pulling cable or against the airflow over the surface.