User blog comment:Martialmaniac/Uvo's Nen abilities/@comment-26871105-20161106034907

Yeah there is a difference between Nen applications and someone's personal defining signature in the form of Hatsu. Nen masters like say Ging can replicate other people's Hatsu with little to no trouble due to his mastery over the art, but it's not likely that he would replicate the effectiveness to the full extent due to the Nen users often have clear emotional attachments with their own individual Hatsu, boosting its power even if it may not be hard to execute mechanically.

Uvo's Big Bang Impact and Gon's Rock are both great examples. They essentially work identically as any other Ko punch, but the difference is the user's will behind the application that truly make them shine.

Nen sections should cover all the Nen applications one could do, but templates should always be reserved for that person's signature ability/abilities they'd developed to in a way, "represent" themselves in some manner.