Board Thread:Naruto Discussions/@comment-26636534-20161212143039/@comment-734582-20161212225353

Actionmanrandell wrote: so the only thing the chakra cloak would do for minato is maybe double his reflexes. Even that would barely do a thing. Minato's senses and reflexes were already immensely well-developed. It seems that being a Jinchuriki allows one to "cheat" to such a level with their large volumes of chakra (in a sense, similar to the Eight Gates technique). However although it gives them good speed, reflexes are still limited (naruto mentioned being able to better maneuver with Sage Mode due to the sensing), as well as control.

Since Minato already possessed such speed, it probably didn't do anything for him.