the mere fact that it is left ambiguous is the issue, neither me nor you can confidently sort the CoA situation out which is mad given the level of Sanji
When fought Queen, Queen literally had CoA hardening on his arm to block, yet Sanji never got a whiff of it
When fought Queen, Queen literally had CoA hardening on his arm to block, yet Sanji never got a whiff of it
Hardening is the basic level, not an advanced one. Sanji doesn't have the blackening effect to highlight his CoA because he wears black clothes most of the time, so it's impractical. Same with Kaido, who relied on his jet black kanabo. It's just an artistic choice.




