The issue I see with Dog Brothers and the like (and this is not a fault for DB, just the reality of weapons training) is that there's little penalty for being over-aggressive unless you are seriously outclassed. With actual stabs and cuts, there's a strong incentive to be conservative. In DB, aggression tends to win the day, because there's more punishment for the other guy. If he neatly "stabs" you while you "cut" him hard, there's significantly less penalty (pain) for you than for him.Have you ever heard of Dog Brothers? They do full contact fma stuff and its pretty brutal and visceral stuff. They get hit constantly and quickly, and it's all pretty much a blur. There's very little parrying, and the rounds are fast..and these are dudes that actually train at speed for competition.