ACoC gives him the ability to do the no hit stuff that should be able to protect him kinda from Law. But one hit from both RT Zoro and current Zoro would finish the fight
The no-hit stuff is not Zoro's style, that's Luffy's style. Zoro doesnt want to protect the target from his swords by not touching them...
Zoro was capable of barriers the whole time, even without aCoC but again, that's only defensively applied...
Law's weakness is that he isnt much of a fighter, that's why better fighter like Doffy took him out without even Awakening...
And Zoro is far better fighter than Doflamingo. Law stands no chance, aCoC or not.
IDK how people come up with ideas such as rooftop Zoro and current Zoro being different and one beatable while other isnt...
Combat doesnt work that way and increasing firepower on the guy who already had it high is changing nothing.