Well, when I take a wrong turn, the Garmin sometimes gets "stuck" on the old route. Or, worse, sometimes there's a blockage on the road that was on the original route, and I have to take an improvised detour.... I have had the Garmin telling me to "do a U turn" for miles and not recognizing that I had already gotten onto the path some miles ahead.

Finally, the other thing I want to do is better mapping. Imagine this, I am riding on the route and both Garmin and myself are happy... and then a blockage happens. At that moment, I would love to have Google Maps on the iPhone, with its nice "bike trails" overlap and easy pinch zoom etc so I can decide how to overcome the blockage. The screen of the Garmin is small, resolution is poor, and is not well suited to browse the map around to find an alternative. It is while I am doing this "browsing" for an alternate path that having the pre-planned original route displayed is what would help me. That way I can see what was the supposed route and how I can loop around the blockage.

I can of course "ride away" and trust that Garmin will get me back on track but, as I have said, several times when I have done that it has stubbornly made me go back to some arbitrary point (where it lost the course to begin with?) and I have learned not to trust it...

Hope this helps, don't know how best to explain it :-)


Luis