I like that term "Controled Killer". It's like holding a beast on a leash, then lettin' him go when you see the opening. You're in control of when you release it, and when you pull it back.
I would also think that "no mind" translates well to "no fear". I think you're talking more about aggression vs methodical. I think really calm approach is good for chaneling your fear, whereas the real aggressive guys with no fear can probably get sloppy and make a big mistake. If you can mix the two (controled killer) that's when you got the guy to watch out for. (Although I still fear the really aggresive guy
)
I also think that being calm and methodical will also help in your training (increasing skills) as well as everday life (road rage anyone?). Relax...You'll live longer
