The one sure-fire experience that everyone will have if the call either CRO or MS in advance is to be told that you cannot leave off day of arrival or departure on the UPH. The one certainty is that, if you ignore them, then arrive at the hotel and ask, the hotel will let you leave off day of arrival or departure. As the structure was once explained to me, the leaving off of days is hotel discretion and thus CRO and MS will almost always say otherwise because they do not control hotel discretion.