It just was plotted by mouse clicks. The google earth one seems close though? as just looking at the graph, it seems alot more accurate from memory, and show more ups and downs, so i’d guess that is higher resolution? (I did this last year mind so my memory might be a little fuzzy, just using this route as i thought a few people might have done the route and have an educated opinion from experience) The mapmyride one seems a bit more vague and smoother in it’s graph.
Actually that’s a question, is there a GPS device that anyone can recommend that will track route data, and give you a current position reading that you could reference to a paper OS map?
Wouldn’t need anything other than that really as I wouldn’t rely on digital mapping.