CP1 is no longer on the wall due N of Pendle trig point. It was moved to take people off the path alongside the wall running down into Ogden Clough due to erosion concerns. You now go from the trig point N to stile over wall, turn left and follow path across moor to wall that comes up from Downham Moor to the new CP1. From here you turn L and head back to Ogden Clough SSW either along wall or across open moor. Effectively doing two sides of a triangle.