I would go with you on that, Luv Shack. Trundler and I used to put the SportIdent checkpoints out on the Cairngorm summits for those events, then man the CP in the Lhairig Ghru. Always a good testing day out. As is a 'mere' circuit of the Cairngorm 4,000's from Corrie Cas, especially the direct line from Macdui to Cairntoul across the s. end of the Lhairig Ghru.