Wayyyy back before Sasuke got itachi's eyes. Know we all kno the reason he said " it wont work on me". Hell, it was the best clue we had a long time ago. Plus, I liked the fact that kakashi believed what tobi said and stopped the kamui. He should have known something was fishy then, thoughts? Also, the truth about the justu is revieled partially, because tobi admitted that he got otito's eye in the great war. I still think that tobi's technique is better that kakashi's because he IS AN UCHIHA!!! that is the only reason why kamui wont work on tobi!! THOUGHTS.....O yea I almost forgot its my birthday on NARUTOBASE!!!:noc: