Chis - We do agree and not to nit pick it depends on the team..handler and dog. It's not just the training excersize it's the proofing that resaults. A dog with courage & confidence will preform no matter if it has learned to take a sleeve or a bit suit. I'm sorry your analogy isn't appropreate. Your MMA fioghter and your boxere are fighting each other. We are not talking about a Shuzhund v. PP dog fighting,we are talking about a a dog v. a human attacker whoi's skill level & determinenation are unknown.