We leave for Scotland in 16 days, so excited. We have railpasses, but on checking some of the routes we plan to take, we note that sometimes reservations are advised. Does anyone know how far in advance one should make reservations? For instance, can you do it the day before and still make it onto the train? Or is a few hours sufficient? We want to be somewhat flexible as we are staying in B&B's and if we see something we like we might want to linger in a particular town or village before moving on to the next stop on our itinerary.
Also, what is the difference between a coach and a bus? I have been using traveline-scotland for some of the planning, and this is where I see this term (coach).
Thank you for any help you can give me.