Ok, I looking to go on holiday to Japan and for part of the period I'm over there have a 7-day JR Pass .... but I have a question about making reservations on the Shinkansen.
Does the JR Pass need to be valid if I am making a reservation, i.e. if I arrive in Japan on a Monday but don't want to have my JR Pass to start until Thursday would I be able to go in on, say, the Wednesday and say that I want to make a reservation for the Thursday using this pass which does not start until Thursday?
I.e. the pass isn't valid yet at the time of reservation but will be when the reservation is actually used.