How could Kakashi make a Perfect Susanoo with only two MS when Sasuke needed a Rinnegan?


When Sasuke first activated the Susanoo with 2 MS it didn't really resemble
the Complete Susanoo. But when Obito gave Kakashi his eyes he activated
Complete Susanoo. Why did it take so long for Sasuke to activate Complete
Susanoo.




> Once a user awakens the Mangekyō in both eyes, or the ability of both of
> their eyes, they are able to perform Susanoo.

Sasuke could make a "perfect" Susanoo once he got ability of both of his eyes.
One probable reason why he didn't use it right away could be the fact that
Susanoo does use up a lot of chakra and he might be saving his chakra.

> The Mangekyō Sharingan's abilities drain a considerable amount of chakra
> when performed.

Source

  1. [Mangekyo Sharingan](http://naruto.wikia.com/wiki/Mangeky%C5%8D_Sharingan)

