In reply to arose:
Having had a crack at this on Saturday I can confirm that it was a mega effort!
We weren't up to it... we did the full route from Lochnagar to Coire Cas (not that you have much choice once you leave Braemar!) but only did 3/6 routes (we just weren't going quickly enough to get them all done in twenty four hours).
Well done again to Ali and Mark -such a good effort (and such a great concept!)