Dave Venables
There are signs saying 66 at each end by the gates and Public Bridleway signs.  I've just cycled along the routes with the widest paths and updated OSM to show these are cycle paths. One section is still gravel but is full width and is good quality.
66 signs at either end of the path through Millennium Wood but road signs elsewhere still point along Blagreaves Avenue and Blagreaves Lane.
Will be a great improvement when this becomes the official route.