If you are considering walking this route yourself, please see my disclaimer. You may also like to see these notes about the maps and GPX files.
I went over another stile and continued through Webb's Copse. The permissive path then followed a lengthy hedgerow on my left. There were occasional gaps in the hedge giving views of the Golden Valley as it approached Nettleden. After several hundred yards the permissive path ended when it came to a stile. I went over the stile and continued along a clear path through the grass (actually the public footpath should turn right over the stile and then turn left in a field corner and follow that edge of the field, but there was no sign of such a path today). On reaching a field corner adjacent to some stables, I went through a gate and then turned right through a second gate immediately after the stable entrance. This path dropped downhill to reach a minor road in Frithsden.
Webb's Copse
The route continuing from Webb's Copse
The route continuing from Webb's Copse
The route continuing from Webb's Copse
The footpath dropping down to Frithsden
I went a few yards right along the road, then took a footpath on the other side that went gently uphill through the trees of Great Frithsden Copse for almost half a mile (the path keeps right at an apparent fork, indicated by a waymark). The path then continued between garden fences, crossed a private drive (I'm not sure whether this still in Frithsden or part of Potten End), ran between gardens again, and finally emerged onto part of Berkhamsted golf course, where I turned right onto a bridleway. This was soon running through trees with a fairway just to my left.
The footpath through Great Frithsden Copse
The footpath through Great Frithsden Copse
The footpath through Great Frithsden Copse
The footpath continuing between gardens (not sure if this is in Frithsden or Potten End) to reach Berkhamsted Golf Club
The bridleway going past Berkhamsted Golf Club
The bridleway going past Berkhamsted Golf Club