"MIhawk wasnt fighting seriously at all"
Prove it. Because the man himself says he doesn't hold back. Post some evidence in the manga he wasn't fighting vista seriously.
now you are just over analyzing a panel, just to prove your point.
after you realized that vista was never equal to mihawk, but only equal swordsmanship "in that fight".... LOL
so is akainu a dog because they called him red dog? LOL
apply logic, don't take every word as it is. that is elementary school tier manga reading dude.
yeah his blade knows no restrain, but you haven't seen him use one named attack... so your conclusion is.....