I’m planning since years and transfert the gpx file to my Tomtom 550.
It’s the first time I have a big diffenrecies regarding the total time of the planned route between my Tom tom and Kurviger. The number of kilometeres are the same.
I have also checked the road points per points without differencies
When I use your route and transfer it to TT 550, I get 8 hours 14 minutes and 475 km.
I haven’t superimposed the two routes, but I’m happy with my result.
What did I do?
I exported the Kurviger route as a GPX file with regular waypoints (every 7 km) and imported it into www.plan.tomtom.com. This creates two routes:
a) the fastest 476 km 7.08 hours
b) the exact route.
I always synchronise the exact route.
However, I must admit that otherwise the export in this way has always resulted in only minimal discrepancies, with a maximum difference of 2 km and a maximum time difference of 5 minutes.