Naruto is a reincarnation of Ashura & Sasuke had the CM in his battle & don't forget the hospital scene. Oh & as I recall correctly, he only used part of the Kyuubi Chakra against Gaara, while he used Shikaku's.
Oh & he was progressing under Ebisu, before meeting Master Jiriya & the fact...
Me
As for Kakashi statements, he never met Kushina.(manga chapter 500-01). Shizune never said that it was Kurama. She only thought that he was going to kill himself in the Rasengan Training & was suprised that. The same is true with LT as well. If you read the War Arc, then you'd know that the...