Board Thread:Naruto Discussions/@comment-5054236-20150717003436/@comment-24808887-20150717221046

AnonymousBlank wrote: Indra + Asura = pre Juubi Hagoromo (with 6paths Yang) not JJ Hagoromo (with 6 paths Yin and Yang)

Besides the 6 paths seals on their palms was only to cast the Rikudo Chibaku Tensei No to creat seals you need for Rikudo Chibaku Tensei you need YYR and SPS, but still you two individuals to cast it. It is possible that Hagoromo created both seal and gave one to Hamura and even if Hamura created yin seal him self(Unlike Naruto and Sasuke) it's only mean that he(Hamura) possess SPS not that Hagaromo was unable to create two seal before becoming JJ.