NX594980 2.6.2008
I biked from Kendoon YH up the B7000 and B729 turning N along the dead-end road from NX633919 to the forest track at Craigengillan. I continued N from here past Moorbrock, around Green Hill to NX612985. (The short section of track between NX632962 and 631964 is unmade and very grassy, not bikeable - the track further east which crosses the river and meets the road at NX641953 is much better). From this point I walked the 2.2 miles to Windy Standard via Keoch Rig and back, then the 1.2 miles to Cairnsmore of Carsphair and back.
It was obvious from the ascent of the Corbett that the track extended further than shown on my maps (as shown on the photos). There is a circle around the head of Glennoch Burn and a spur heading SW along the base of the forest which probably joins up with the track at NX578971. The circle did not seem to join up with the wind farm access roads, but would probably have been a faster route to Windy Standard by biking further.
(7 hours 20 mins, 16.8 miles biking, 6.6 miles walking, 4100' of ascent)