Nice idea – but not very useful for me, sorry.
Doesn't show distance, height gain or loss, or ground – so hard to work out what goes where (I know this isn't a trail map – but these would help for reference points). Also this means it's no good for working out whether to take lifts or the links, so little actual pracitical use either.
Clearer than the usual maps for showing how things link up, but really hard to get your head around – especially of you don't know the names of the things. Lack of distances don't help here either. Labelled runs might improve things.
Ridges/other features – shapes of towns etc would help me – but then it's turning into a map, rather than something to show the links. Could you try overlaying your 'tube' map on an actual map/pictoral map of the area somehow
Great idea, maybe needs a little 'tuning'.