Board Thread:Versus Debates/@comment-27664103-20160220225016/@comment-26369387-20160224220440

Also, the strongest version of Madara's Susanoo with EMS that has been shown before Rinnegan or without Majestic Attire: Susanoo with Kurama is the Armoured Susanoo.

To me, Complete Body — Susanoo requires more than just EMS, which was Madara's strongest Dōjutsu before VotE. The most likely reason is Six Paths Chakra, which EMS!Madara before VotE didn't had.