im not going to go that far back but i will put u in that direction it should be btween the time he was summoned and when he joined obito u can decide to look for it or not but im not going to at all since i and countless others knw the difference between final and final susano with its chakra stabilized which is why madara called it perfect...lol why do u think everyone is always saying ps is this...ps is that, they say it because madara has it...u must be the one living in a cave
Its your voice against the wikia's, sadly youre wrong here.
Also you cant even back up your claims. He would have to literally call it "Perfect Susanoo" for it to be its official name.
The fact remains, it's a final susanoo.