Board Thread:Theories and Speculation/@comment-27924662-20161219053341/@comment-1872728-20170112173810

Thekillman wrote: Obito was aware of the procedures, and still manifested the tree. The juubi also took some time regenerating to it's full form, so the fact that it only had portions of biju is also irrelevant. He couldn't manifest it himself because he doesn't have most of Kurama. The full form you're referring to is not the actual full form, or else Obito would've looked the same as Madara after becoming the Ten-Tails' jinchuriki.