Board Thread:Theories and Speculation/@comment-26889573-20151008053113/@comment-9782468-20151012204452

@GreatestSin Whoops you're totally right haha. My bad, my bad.

But Kakashi did say that Naruto had 4 times the chakra that Kakashi had outside of Kurama's influence. Adding Senjutsu, I don't think a Rasenshuriken would only take half of Kakashi's chakra.