The ACE System — Modern Biomechanics, Technique & Tactics Technique, Biomechanics & Tactical Application Original player imagery retained and visually cleaned from the supplied document. 1. Why the slice backhand matters The slice backhand is one of the most tactically versatile shots in tennis. Its value is not simply that it can be used under pressure. A well-executed slice can alter the opponent's available time, contact height, court position, rhythm and options on the fo