Originally Posted by
Looigi
I use gpx tracks created on third-party websites (BRT, RWGPS, GPSies, MMR, etc..) almost exclusively on a 705 (3.1 software) and it navigates them generating turn-by-turn instructions pretty well. The problem is it will occasionally take an off-road straight-line short cut between two arbitrary trackpoints skipping over lots of intervening on-road trackpoints for no apparent reason. It often even says, "Turn right(left) off-road" when it does this.
AFAIK, nobody has figured out the reason or a solution to this problem.
I've learned the hard way. Don't use the "cycling" option unless you have a mountain bike. Choose the "driving" option if you don't mind taking a longer route that keeps you on the pavement. Road bikes can't do some of the routes that the "cycling" choice will select.