This setting drill is final drill in the progression of setting drills and the focus is on decision making and dumping the ball. The players approach from area 4 and then based upon the pass have to decide are they dumping or are they setting. Chris often changes the drills in the series based upon what he see as the setters needs for that week but he always trys to get at least 1 decision making drill into the setter warm up drills.
This video also gets very detailed on indoor volleyball setter dumping technique. Chris explains the importance of discussing the dump and how to do this.