Do you guys think that Zoro mastered that BOAT stuff during the Mr. 1 fight? or just the cutting metal part of it?
Because i'm thinkin about the power ups paths Oda could take Zoro.
1st - Adv. CoC / Understanding and Mastering it now that he has it.
2nd - Shimotsuki Blue Flames stuff.
3rd - Maybe somekind of CoO because of the left eye stuff.
4th - The REAL mastery over the BOAT stuff to cut anything.
In fact, 3 and 4 could be one.