Somehow this is one of my favourite fights in One Piece, even today, fully caught up, for being a 100% Usopp just being himself but much matured kinda fight
The fact that Robin put the salt in the Zoro copy's mouth so slowly is once again typical Oda and Toie to stall for time and drag everything out unnecessarily. This will get much, much worse later on. That's something I don't like about One Piece at all! Unnecessary procrastination with scenes...