Originally Posted by
Steve B.
I wonder how well the map re-routing works if it's a route created in Garmin Connect.
Garmin Connect isn't adding extra magic data to the file. The rerouting calculation doesn't use data in the loaded track beyond using a point on the track to navigate to.
Originally Posted by
Steve B.
One potential method IF the unit has access to databases like RWGPS, Strava, Connect, etc... would be for the unit to relatively quickly scan those databases for other posted rides in that area and choose from those known good routes for that area.
It seems that people usually want the rerouting to get them back to the course by the shortest route possible (using appropriate roads). Using the databases wouldn't really be useful for that approach. It also would require internet access, which you don't always have. On a ride, internet access for the Garmins requires also having a phone.
Often, rerouting isn't even necessary. You generally know you are off course fairly quickly and often the quickest way back to the course is to turn around.
Originally Posted by
Steve B.
Outside of that, the best choice is to use the return to start function, which will follow the current path/route to the start.
This is a useful for people to be able to choose but it's not the "best choice". Depending on circumstances, it might be much longer than necessary and it is only an option for loop routes.