Board Thread:Theories and Speculation/@comment-26389094-20150918090852

When Obito became a jinchūriki he first had problems controlling Jūbi, but later he mastered that power... When he mastered the power, he first fought without pulling out the Shinju, namely the God Tree... After Minato and Naruto struck him with the Sage Art: Rasengan, and we're about to "finish him off" with Sage Art: Tailed Beast Bomb, Obito took out the Shinju out of him... Now my question is why didn't the Rinne Sharingan manifest on Obito's forehead when the Shinju was inside him like it did with Madara after he absorbed the Shinju?

Do you think that the reason was the fact that he didn't have Gyuki and Kurama completely sealed (only had parts of their power)?

In my opinion Obito should've had at least the eyelids closed but he couldn't use it because of the reason I mentioned above... 