Routing preferences
Thanks, Farmguy. Yep, the bike preferences seem to override the planner. To use both highway and secondaries, I guess I'll just have to add additional way-points. Good thing they updated the Nav software to accommodate more than 8! --Ralph
Please be aware that when you are transferring routes to a GPS, you only transfer way points, you do not transfer a route. The route will be generated by the GPS following its routing preferences. The people that do Basecamp really heavily recommend turning off avoidances on the GPS and adding enough waypoints to get the route you want. I'd think that principle would be even more applicable for those that are not using Basecamp for their Garmin route planning since they have a completely different routing engine in the planner and in the GPS. The Basecamp gurus even recommend allowing unpaved roads in the GPS and planner because the map data is really bad as to whether a road is paved or not.
When I am importing Google routes into Basecamp, I actually import the track from GPSVisualizer and then recreate the route with shaping points rather than trying to convert the track to a route. I then overlay the track and the route in Basecamp to make sure they go on the same roads. One relatively complex route I imported from Google required about 50 shaping points to keep the routes on the same road. The end result worked fine when I rode it, but it was a challenge to create. BTW: In Garmin lingo, the only difference between a way point and a shaping point is the GPS is more willing to miss a shaping point but is pretty insistent on going to each way point. Basecamp actually keeps track of which points are way points and which are shaping points and sends that info to the GPS.
If I'm doing more ad hoc routing, I get an idea of where I want to go with Google Maps on my iPad and then I put the cities or other desired location in the Garmin. If I have put in a general location like a city, when I get close, I tell the GPS to skip it and go to the next. If I have entered a place I want to actually stop at or at least go right past, I let the GPS traverse the route normally.