Charles,
See the well written article by R Mayer Twerski which basically trashes all your comments.
I am not sure who your Rabbi is, since you do not name him, but R Soloveitchik’s grandson, a RY in REITS as well as R Hershel Shechter, of the prime talmidim of R Soloveitchik, specifically say that the “psakim” of Harcsztark and Lookstein are not in the derech of R Soloveitchik. So I am less than inclined to take you at your word.
I fail to understand how Harcsztark became a posek and he conferred with his Rebbe, a high school teacher. That is just an inane comment.
I suspect that certain of the paragraphs quoted from the Shulchan Aruch and the Rambam specifically deal wuith those “psokim”.