Board Thread:Theories and Speculation/@comment-37809247-20181213232237/@comment-734582-20181219220547

Kirito975 wrote: i still pose the possibility that sussanoo prowess is madaras MS forte, his developmental stages were way advanced compared to other susanoo users at the same MS stage.

just my own headcanon tbh I think it's more that Madara had years of experience with the Susanoo, unlike everyone else. Itachi only used his power for emergencies. Sasuke hit the superpower jackpot before he had fully explored his capabilities.

If you have an EMS, you have effectively infinite chances to use Susanoo whereas with merely an MS you have a harsh limit on what you can do with it.