Board Thread:Theories and Speculation/@comment-25356416-20180802112422/@comment-30323490-20180802142814

It’s not the case.On the same scale, a technique used with MS uses the same quantity of chakra as it would with EMS. It’s all about eye deterioration. MS has its drawbacks (not because of chakra) that affects the user’s whole body, hence why the get weaker after using it. Even Sasuke stated when using Susanoo that his whole body hurts and wondered how Itachi managed. EMS simply doesn’t have these drawbacks and doesn’t restrain the user like MS did. But both eyes use the same chakra quantity.