Mark Sloan

Based upon recommendations of others, I intend to purchase the building drive, focus, and grip DVD soon from Leerburg. What I am trying to avoid is purchasing DVD's that aren't necessary. Specifically, I'm wondering what you guys think of the Leerburg DVD "Bite Training Puppies." I already own the Balabanov DVD. I am trying to prep for my male Mal I get in a month. I've raised working German Shepherds before. I just don't want to leave any stone unturned. Any help any of you can get is appreciated.