Bob does a excellent job on demonstrating those shots and the DVD is good quality. Was watching that DVD the other night and never noticed before but it is filmed at the Accustats Studio and Jim Federicks is the camera man. Jim is the person who usually moderates the chat on the Wednesday Game Show.
I also have the DVD by Bert Kinister where he gives 26 shots. Bob has basically condensed these 26 down to 16 but shows boundaries, extensions, and gives better instructions on where to hit the CB.
The book and DVD complements each other as the book can be used as a eprference to set up the shots.