One question I have is why are we theorizing what Chassidus might hold or not hold when we generally consider Halacha an overriding factor? Meaning, if you have clear guidance on what the Rebbe held, then please do so. But if all you have is people's minhagim based on Boch Sevaras or mistaken assumptions (see Rabbenu Tam on some Minhag Medina), then why we do we override Halacha or standard Minhag based on that?