Board Thread:Theories and Speculation/@comment-32742265-20180119154238/@comment-6769189-20180126035942

I was talking about Shadow of the Dancing Leaf. Sasuke used that no practice. Following this logic, the worst that would happen to a Sharingan user copying ninjitsu would be failure due to lack of sufficient chakra.

The only thing Sasuke's training did was increase his speed, the motions themselves would be essentially the same, just at a slower speed.