CoC and it is clear as ti gets.
Starting the chapter with Garp saying the youth's potential is limitless
We then have version 2.0 Rayleigh's statement about haki (Never doubting yourself is strength) "Never second guess yourself in the heat of the moment " in response to Coby saying " Idoesn't know if ..."
Coby screaming up his lungs that he will live up to his expectations,Flashback with Garp grin up to his ears just thinking about it
and then we have a 1 to 1 depiction of Garp and Coby using it.
Can't be made any clearer than that tbh.
As for the misters with after punch lightning missing.
So did after Zoro's onigiri and bird dance
Taking in consideration some afterwards lightning instead of 1 to 1 panel depiction is daft.