What happened to hover + 15% (TQ) needed for departure? Sure, after the initial vertical climb and rotation you will sink, but you will also clear the deck with comfort. If we didn't have that margin in the hover, we were expected to offload the appropriate amount of freight/pax. It used to be called common sense!!
I can associate with diving off the decks in an underpowered 365n way back in the mid eighties, but I put that down to the fact that I was A) single pilot ops, B) young, dumb and full of cum!!
It's a no brainer these days....