Board Thread:Naruto Discussions/@comment-7292165-20140929201636/@comment-25442883-20140929203942

I think using base Sharingan genjutsu while MS is active just boost its effect, same thing with Rinnegan, there is no genjutsu: MS or genjutsu: Rinnegan ...

As for Sasuke having Tsukuyomi, i highly doubt it, i have many reasons for that, one of them being when he and Itachi fought Kabuto, he put them in Karura's genjutsu, Itachi used Tsukuyomi but Sasuke used Genjutsu: Sharingan to free themselves.