Board Thread:Naruto Discussions/@comment-34700383-20180829185752/@comment-6769189-20180902042321

Hagoromo appeared to Naruto before he had Gyuuki and Shukkaku's chakra. 6 Paths Senjutsu and 6 Paths Sage Mode are basically the same thing. SPSM doesnt seem to require using the Juubi to use SP Senjutsu.