If you review my answer, I never mentioned that his title was fake in the beginning, I'm talking about the fact that Shanks is not a swordsman, and he falls into the category of multistyle fighters.
Like Big Mom and the rest. First, for the Mihawk title to apply to Shanks, Shanks himself must call himself a swordsman, call himself one, or the manga gives us this information, his fighting style canonically which class he belongs to, although we don't have this answer for now, the only thing we know is that shanks in fencing has equaled mihawk in the past, mihawk which has a unique fighting style, it is exclusively the sword, and this exalts the akagami fighting style in fencing, in addition to holding the same level of fencing as the mihawk in the past, the man has a giant upward power that is HAKI, which may be the class he has specialized over these years, instead of continuing to tread just the sword path when he lost his arm.
Kaido and Big Mom fought between swords + Kanabo in the manga and ended up in a tie, as you can see, the anime portrayed a clash of kanabo + sword and physical strength, without the use of DF, the mihawk case and the rods can be similar, Big Mom and Kaido were the same for 3 days, we have no confirmation of the use of DF by both parties. If Kaido loses one of his arms by chance and Big Mom gains a sword edge against the kanabo showdown, it doesn't mean that in general Big Mom's power will be stronger than Kaido, Kaido with his DF can match or surpass him Big mom , because his fighting style can change in decades, he can for example choose another class to specialize, in the use of haki etc... But he will still use the kanabo.
But as I said claim the mihawk> Shanks, I was wrong.
O
@Seraphoenix was right in our long debate.