UJM: If you are referring to the obligation from zaken mamre of ” lo sasur” (Devarim 17: 10,11) that is referring to a psak in halacha given by the sanhedrin. Yes, we have a system in place (Torah obligation as you put it) in how to follow halcha when there is a machlokes. Apparently the question of the OP is one that relates to either hashkafa or personal guidance, not a bona fide machlokes involving a majority opinion against a daas yachid.
Once again I ask you to give a source that says for personal guidance a person should ask a gadol shebeyisroel before (or after) he asks his own Rav/Rebbe.