There is a kuntress on paskening by the Shac”h located in between simanim (do not remember which) in Choshen Mishpat that says something along the lines, When a Rov writes in a Teshuva that a Baal Nefesh Yachmir it means that ALL hold with the exception of a Daas Yochid that the Psak in question is Mutter and if you feel the need as a Baal Nefesh to follow the Daas Yochid then Baal Nefesh Yachmir.
which if you ever saw the video of R’ Belskey talking about R’ Moshes Psak on C’Y he says that R’ Moshe always would say that he was always careful to write a Baal Nefesh Yachmir when saying a person can rely on the Hetter of Cholov HaCompanies.