Board Thread:Wiki Discussions/@comment-25217769-20140723231559/@comment-4031545-20140801042625

Darhumphump wrote: he still wouldn't gain 4 arms and 2 faces if he were fully unified.

We don't know that for certain. It could also have something to do with who is using the mode. Not all of the Susanoo are the same, but they are arguably the same technique.