Can I suggest a new sub-topic of 'Sustrans Routes'? The reason I make the suggestion is that for-good-or-bad Sustrans really is a first stop for many getting back into cycling looking for routes. For the Edinburgh and surrounding area it might be useful to have up-to-date actual-real information on routes, as well as local knowledge on what surfaces are like and so on.
For example, it would be worth people knowing that the route that follows the John Muir Way is a bit of a trial on a road bike. Conversely, we cycled route 764 from Dunfermline to Clackmannan at the weekend and it's superb.
Having had a wee search I can't find a really-this-is-how-it-is guide to various Sustrans routes. I do wonder if a nationwide 'real-Sustrans' site would be good (and could use a much better mapping tool than Sustrans use themselves!). Hmmm, I've got an idea brewing here...