FYI: We transited YUL from ORD on the way to ZRH yesterday - initially denied access to the Maple Leaf Lounge due to the fact they apparently already wiped US Airways Club Memberships out of their systems. Desk clerk had to manually check us in, and after all of that work (more painful to watch than actual effort exerted) he realized due to our class of travel on Swiss we should have been allowed in the lounge regardless.