Board Thread:Theories and Speculation/@comment-27717552-20160513151229/@comment-24824859-20160514201127

Thekillman wrote: Wind Style itself cost years, Wind Style Rasengan cost years. He had a couple of hundred clones at all times, making every training day about equivalent to a year. Of nonstop training, so equal to several years of regular ninja life He didn't have thousands of clones when he figured out the shortcut, though. What I am saying is that Naruto was basically wasting "years" trying to add his wind-nature to the Rasengan. But once he figured out the shortvut, it only took him around an actual week (in experience) to almost perfect it