I’m relying on Rav Moshe’s psak. My father is a chabad BT. I did go to Lubavitcher yeshivas but honestly, as much as I love chassidus I disagree with the modern trajectory of chabad AND I feel like the Mesorah of Geonei Ashkenaz is more reliable in terms of halacha than the modern day expression of the Alter Rebbe’s psak.
Not to disparage the Alter Rebbe, but surely the Rashi/Rosh/MahaRam etc knew what they were talking about…so I don’t feel like I need to strictly hold of the Baal haTanya