One, Madara never showed the ability to use PS without eyes. Only inferior versions.
lol Your point?, Susanoo is still Susanoo. If anything once he got his original eyes back (= his original chakra potency) his abilities to use PS returned.
Second, regardless of how bad it is, the Juubi does SOMETHING to your brain. Thirdly, the idea that the Juubi in any way amplifies the Susano'o is baseless, unless you try to give Sasuke's feat to Madara.
This whole statement is stupid but for the sake of it let me educate you. Stronger Chakra Potency = Stronger Jutsu/ Techniques which has been shown through out the whole series. Unless you think, Chakra from the Juubi + Rikudou chakra from his Rinnegan and Third eye is weaker than his VoTE counterpart's then you need to go re-read the manga. And no the Juubi does not affect Madara's brain, jesus...
@Bold lol, you think Stronger Chakra = Stronger techniques is exclusive to Sasuke. Oh Please.
Thirdly, unless it has been showcased in Manga it doesn't exist. We don't assume that Nagato can use Limbo, even though it's the same eyes. We don't allow Animal Path or Asura Path in Sasuke battles, even though it's clearly stated they are Rinnegan techniques. There is no proof he retained his EMS powers, especially after replacing his with Rinnegan, which have never been shown to deactivate.
@Bold Lol Manga showcased Susanoo without eyes >>> Your imaginary claim that being a JJ f*cks with your brain therefore he can't use any Dojutsu (yet Madara can still use his Rinnegan so wtf lol).
@Underlined you know how retarded this sounds? Nagato can't use Limbo cause Limbo is a unique ability to the Original weider of the Rinnegan, this much is obvious. Sasuke does have all the Six paths techniques, what are you spouting? They don't get mention in Vs battles because it has little to no use for Sasuke compared to his other superior techniques.
@The rest, Yes there isn't proof that he retained "ALL" his other EMS powers but logically he should but this argument is about if Madara can use Susanoo and he can, end of story. Obito was shown to use his MS powers (Kamui) with his normal 3 tomoe Sharingan but that doesn't concern with this debate whats so ever.
The last and most obvious point I am making is that either he lost the ability, or it lacks usefulness. It was clearly the obvious choice to prevent something like BZ. When he became the Juubi Jin, his body underwent changes. He lost SM (BZ snuck up on him), so it clearly affects his physiology.
This takes the top for most retarded thing you ever said. Have you ever heard of PIS?
@Bold Having SM =/= having the ability to dodge all incoming attacks, Obviously. Let alone someone that he thought was made from his own will. That's not even close to a reliable proof that it affected his "physiology".
Don't even quote me again until you actually give me decent proof that is worth debating.