He always used CoC since his clash with shanks, but the lighting sparks and "weez" brainrooted Haki schoolars, that they forgot invisible Haki is a thing
When he split the skies his condition was stable, the point is he was not stable at all after a while during MF. He had heart attacks left and right mate. Youre being disingenuous making this comparison.
Not only that, why would WB only be able to use Armament coating and not Conqueror's coating? The mechanism/mass behind both is the same


