Jiu Jitsu Masterclass with Tim Peterson | Jiu Jitsu Brotherhood High Level Jiu Jitsu Concept from a Jiu Jitsu Genius... Tim Peterson from Robot Fight Fitness in LA explains the interplay between the principles of "Extension", "Rotation", "Torque" and "Slack" in a jiu jitsu context. Time is an incredible teacher - check out his site: www.robotfightfitness.com/ Production by BJJ Training Journal: bjjtrainingjournal.com/