Laskern – you know the Mogen Avrohom s. 301, s’k 7 and s. 554 s”k 12 rules that there IS a mitzva to visit rebbe/tzaddik on yom tov, as do the overwhelming majority of poskim. The Noda B’Yehdah (Tanina, O.Ch. s. 940 is a lone opinion, and difficult to understand – especially that he does not mention the Mogen Avraham at all.
In any event, “ma shmita aitzel har Sinai”, I don’t understand the connection between your comment and the discussion of this thread Subject: “Who to visit first Rebbe or kosel” Are you trying to switch subjects?