Board Thread:Versus Debates/@comment-29899821-20160317090255/@comment-3965545-20160512030838

Itachi didn't have MS until Shisui died. Also all the stories on Storm Revolution were written by Kishi and the designs were from Kishi too. So I think they may be canon.. Only Perfect Susanoo are not canon for Itachi and Shisui for a fact.