I would like a point on the R806 at the junction with Nephin Road, visible
here on OpenStreetMap or
here on Google Street View. The bus I was travelling on turned off the R806 here, and it is likely the most important junction on the section of the route between the existing points J69 and AshRd.
ETA: Additional points on the R147 and R805 at Nephin Road could also be useful, with it forming an important link between the three routes.