Enjoyed the Troller's, though I'm still getting used to this eating on the hoof lark. Pleasant runnable route and not demanding on navigation, at least on a clear day. Finished in 3:35.
Interesting point about the designated route above. As I understand the protocol, it's a strict no-no to trespass or climb over fences or walls or leave a right of way. The area at Barden is Open Access land and there's a couple of ways to get from CP4 to CP5. You may have seen me. On the 25000 map you'll see the track and footpath I used hiding under the words Grouse Butts just east of Upper Barden reservoir. I'd consider that using my initiative, but not leaving a right of way.