Board Thread:Theories and Speculation/@comment-32617252-20180505055143/@comment-142748-20180607062627

Rusty doesnt mean weaker. They both have their abilities from Hagoromo, Naruto doesnt have TSB because they were lost or destroyed in his fights with Madara/Kaguya/Sasuke.

Once merged Momo nearly burnes Sasuke alive and After absorbing some Ninjutsu had Naruto at his mercy. But before that Naruto and Sasuke were kicking Momoshiki's ass six-ways to Sunday. If not for the mind-controlled Katasuke, he'd have lost then and there and Naruto and Sasuke were heavily restricting themselves so they wouldn't use ninjutsu on Momoshiki either.