Hi Hampic,
if you want more points you can also use my conveter to add further route points: http://gpx.shelms.de/GPX/GpxShaping.html
I described it shortly in Converter Kurviger routes for newer Garmin / BMW Navis here in the forum and more detailed in help of converter.
Example: I took your route and added further points each 2km:
Regards Markus
