In order to efficiently plan out the day's ride, I think it's a good idea to use a gps. I have a garmin edge 500, and it has the capability to import courses from mapmyride, ridewithgps, strava, or some other course generating website, with turn by turn signals. the only thing is that it doesn't have street names, and doesn't "recalculate" if you decide to deviate. I'm thinking the tour can be split up by days, where the route is preset on the previous evening. That way, the day can be somewhat planned for the time arrived to lunch, dinner. etc So based on your experience, how often have you had to deviate from your predetermined route on a tour? (eg. realized the road is not suitable for riding, decided to take a different route, other reasons)