Check points are at Crug Mawr Summit, then in valley between Crug and Sugar Loaf to ensure correct route is followed through farms plus another one on the Western ascent of Sugar Loaf. You're on your own then until the road crossing by the little church at the western edge of Llanfoist where the lane leads up to BLORENGE!! Another CP on Blorenge summit and then more terror in the badlands of the open cast works until its trial by Council Estate Alsatian en route to the Leisure Centre at Blaenafon
There are LOTS of fabulous chances for going wrong. Most people are OK as far as Sugar Loaf because you can usually follow a local. But you can seriously cock it up coming off Sugar Loaf....I do my best to shake off any followers down there! This can lead to a miserable urban orienteering session in the back streets of Abergavenny. Even a local can get lost in the open cast works above Blaenafon because BLORENGE has the ability to disorientate by knackeredness!