Bringing this thread full circle, the Calver Peak race route has been changed to avoid most of the newly tarmaced track. The new route will follow the continuation of the sheep trod after the quarries running downhill parallel to the track then crossing the track and taking a path before joining the original steep uphill section part way up. The new map is available here http://www.calverpeak.co.uk/map.html although there may still be some fine tuning required. I suspect the tarmac track will be out of bounds as it may well be quicker for those so inclined.