Board Thread:Theories and Speculation/@comment-1512913-20160709202754/@comment-1512913-20160711153409

My point is that those who have Rinnegan by merger of Asura and Indra chakras, they literally have Hagoromo's chakra, it was stated in the manga. Yet Sasuke doesn't exhibit Six Paths Senjutsu nor did Madara before becoming a jinchuuriki (same for transplantees, Nagato and Obito).

Meaning that Six Paths Senjutsu isn't an original, innate trait of Hagoromo's chakra, but something he developed later in his life.