Today's UA 805/806 was/will be operated by a B763 again. Do they sub P.S. B752 for a B763 on this flight frequently? I will be on UA 806 on Sept. 4 and I can’t decide if I will be happier in a pseudo E+ seat on P.S. B752 (and hope for a bump) or in a real E+ seat in a B763 (should a swap happen).