I have a 9 month old GSD and am curious at what age i can start his personal protection and muzzle fighting work. I know he will bite because we have performed the character tests as well as some pre-sleeve training at home. I’ve never owned pups. Before, i only bought fully trained dogs but my grandfather left me this dog when he died a couple months ago so I kept him and tested him and he seems to be born for the work. Any one know at what age Helpers are willing to start training? I’ve owned and handled dogs with various titles to include Schutzhund, KNPV, and Ringsport so i’m not worried about the work.