Ok let me start by saying Sasuke first of sucks both back then and in shippuden
Sasuke HAS NEVER EARNED ANY OF HIS POWER! NOT ONE INCH OR HAND SEAL OF HIS POWER!
All of the power Sasuke has ever had was GIVEN to him. He barely trianed for anything he was always given some new power. Being...
So as I am all sure we've read and have seen Kabuto in sage mode. Now remember how Jiraiya and Naruto looked after they have went into sage mode. One can always tell how someone is in sage mode by lookin @ the overall body appearance of the character (i.e Jiraiya having webbed toes and warts...