Originally Posted by Numinous
Humm, we indeed saw what the other arms can do in Sasuke's version (bow & arrow and Susanoo blade) and Madara's (jutsu casting and Susanoo blade). The manga made it pretty clear that the user of Susanoo has to gather the regalia in order to use it (remember Zetsu commenting Orochimaru wanted the Totsuka Sword for himself?). So far only Itachi has demonstrated using the Imperial Regalia, saying that the others have it but didn't show it yet is making an argument from ignorance.
While we're on it, what's the point of your theory? You talk about the workings, but I don't see any practical point to it that the fanbase didn't figure out already. So what's new that your theory brings to the table?
We saw what two of the arms did, but if you look susano'o has more than just the two arms.
It's not an argument from ignorance, it's an argument based on the real-life (well, close enough)versions that the narutoverse ones are based on. The original theory was very well thought out and convincing, I am just not doing it justice.
My reasoning in bringing it up was that it should be no extra strain on the wielder if it is a standard part of the jutsu, as was theorized by somebody at some point, and I have yet to see anything that disproves it.
Note that I was never claiming this as my theory,, and I don't want to delve too deep into something that didn't originate from me, I was merely bringing it up as a possibility that could negate the effect I was quoting.
If you were referring to the initial post, well I have never actually seen any theory on any of several similar sites to this one that even addresses the varying states the ET zombies come back in. If you have seen another theory that addresses the differences, please link it.