I’ve always ridden the Mt Keen and Fungle route anticlockwise. Yes, riding up from Glen Tannar is a bitch but it’s possible to get pretty far up. Then hike over the boulders to the top and get rewarded with a stonking loopy descent to Esk (recent punterisation has removed some of the magic, as have the big bikes, it was epic back in the rigid days). I’ve ridden down this way as well after a rear mech died while traversing the summit, it was a very entertaining descent. Climb out of Tarfside is a drudge but all doable with the reward of Fungle to Birse descent (better pre the punterisation in my opinion – but there are other options…), then the last leg screaming climb back up towards the antler hut (have a look in) for the last sweet descent to Aboyne. The Firmounth on the other hand would not I believe make a particularly great descent, it makes for a horrible climb… which can be ridden up if you’re a legend.
It’s been a few years since I’ve bothered with this circuit, the descents just don’t justify the climbs for me when I know of better stuff… but perhaps it’s time I revisited… and tried it clockwise 🙂
The thought of riding up the Firmounth… *shivers*