Its the most limited, yet it's the most effective. Doing to much stupid **** limits you. It depends on what your goal is. If you wanna knock someones lights out or kill someone. Punch them in the ****in' head. Concentration on this one technique therefore, makes you less limited in achieving your desired goal. If that is what your goal is. They will be ****ed up before they can counter you with anything else of significance. Which would be to take you down and **** you up. Which to many people is the most effective way to win a streetfight. I believe its better just to have footwork, speed and mind boggling power in your punches. :thumbsup