Board Thread:Theories and Speculation/@comment-30168130-20170710055942/@comment-734582-20170710193545

Ravenlot 27 wrote: I thought it had already been established in the Boruto movie itself that Boruto can use the regular Rasengan as well (since in the end he jumps from the Hokage Rock with his teammates preparing to use a regular-sized Rasengan). Yea, but we have no idea how long it was after the events of the Movie. Lorenzo.r.1st wrote: @thekillman it took sasuke around more than a month to make an imperfect chidori for the chunnin exams.... As Kakashi noted, a considerable amount of time was spent on getting the lightning release right. Plus, Sasuke could use it only a couple of times per day. Boruto's chakra is already strong enough that he can use 4 clones (if we go by straight multipliers, that means he has around 2-3 times as much chakra as Kakashi, and even more than that compared to Sasuke.)

Boruto has the convenience of being both smart and having quite a bit of chakra to train relatively often. Which isn't too weird, as Naruto was unusually stupid and had unusually ridiculous chakra, whereas Boruto trades quite a bit of that power for quite a bit of intellect.