The reference material suggests speed is key to delivering a powerful punch that can knock someone out.
While the provided reference doesn't explicitly name the most powerful punch technique, it emphasizes that the ability to knock someone "down [and] out" relies on speed. This implies that any punch, regardless of its specific mechanics, will be more effective if delivered with sufficient velocity.
Therefore, to maximize the power of any punch technique, one must focus on generating and transferring speed effectively.
