If you have a route to a specific
waypoint (AKA Favourite) then yes, it will keep trying to reroute you there.
Garmin's Mapsource and Basecamp can create another type of routing point if you use the drag n drop routing tools. Most people refer to these points as via points or routing points or sometimes as PONIs (points of no interest). They exist only to make the route pass along a particular bit of road. If you miss one of these points the GPS will not necessarily reroute to take you through the via point. For example, if for some reason you have detoured onto a route that parallels your planned route with it's via point, then once you have passed beyond the missed point on the detour then the GPS will stop trying to calculate a way back and will take you on to the next via point in your route.
You can recognise the via points in a route in Mapsource by looking a route properties where they appear as small black dots in the list. On the Zumo they usually appear as brown flags (goodness knows why, they are simply a distraction
).
Route via points is a very useful feature but to make the most of it you are best to turn the auto recalculate function to 'off' or 'prompted'. Turning it 'off' means that you have to ride by the map display and get yourself back on track. But if you then find you really do need to have the route recalculated, you can force a recalculation and it won't take you back over ground already covered.
If you leave the auto recalculate 'on' then you'll find the Zumo will initially try to route you to the missed via point, then it will give up if you continue to ignore it and pass beyond the missed point. It's just a distraction having the screen go blank whilst it recalculates, if you're actually trying to use the map to get back on course. Hence the advice to turn recalculate to 'off' or 'prompted'.
BTW, if you plan a route on the Zumo itself I think you'll find that each routing point is in fact a
waypoint. The viapoints I've tried to describe are created when you preplan a route on a PC.
, does the 660 still try to take you back to make the point. My Tom Tom does this even if you are further down the route.
