Not done this one yet, but if you have not been to this area then go soon! Many of the roads are excellent and I have done the Canonbie/Hawick/Jedburgh run many times. Thanks for the tip! Must look this one out this weekend and report back.
Very twisty section that starts by Hadrian's Wall (the historical wall that seperates England and Scotland) and twists wonderfully up to Langholm. A nice road to include in a scenic tour.