Board Thread:Theories and Speculation/@comment-31099706-20170327120301/@comment-25122992-20170328190731

Again, there's no evidence that Sasuke activated CS in the real time, so all the assumptions about some "senjutsu-boost of Sharingan" are merely assumptions. Also, Itachi said that only a "Sharingan user with the same blood as him" can break Tsukuyomi, he didn't even mention that MS is necessary.