AAQ:
It would appear to my humblekite that someone filled with Torah wisdom, someone whose very being is suffused with חכמת אלוקים need not evaluate himself via secular tests and barometers (thermometers, speedometers, altimeters) to weigh in on a Torah related subject.
If he was once מכוין to a Tosfes’ Kasha or a Shach, that should suffice!