The red line is the line Tim and I climbed which was first climbed climbed on the 16th December 17 by Murdo and Iain Small which basically covers the crux of the Duel into an E1 called En Garde ramping up the sustained nature of the whole climb but does not need a massive cam! The red into blue, is the original line of the Duel. More info here http://www.scottishwinter.com/?p=6629