In reply to Chris Huntington:
the first time i did the traverse, i was coming up from glasgow on the bus the night before and was thus needing a camp for the night.
i brought a minimal bivy arrangement along and ascended bodach from the sisters car park, but found two gentlemen already settled in for the night on the summit. i headed onwards to give them some space and did the initial downclimb onto the ridge before walking onwards to the next peak. i spent the night there, with the crazy pinnacles visible beneath the moon.
i strongly recommend this approach! the red squirrel can be kinda fun (and obviously the clachaig is a wonderful place to get leathered), but i really enjoyed doing it as a bivy trip instead. naturally i finished up in the clachaig the following afternoon and was pleased to discover that they had cairngorm black gold on tap at the time. i rehydrated to a point of extreme inebriation.