Board Thread:Theories and Speculation/@comment-31074250-20170318090411/@comment-25122992-20170414160216

@Jawnaphino, Six Paths Yin and Yang Power markings given to Sasuke and Naruto respectivelly were only the keys to Six Paths — Chibaku Tensei seal, but nothing more, which is why they vanished when the jutsu was eventually put in action. They neither granted them any new abilities nor augmented the pre-existing ones, i.e. Naruto's/Sasuke's main powers, Six Paths Sage Mode and Rinnegan respectivelly, weren't even connected to those markings and got awakened independently due to Hagoromo bestowing his chakra to these two.