Its an exellent route,(41 miles)and should be ok after the recent dry weather,coincidentaly I have just been out with chipps covering this route for a singletrack article in the not too distant future.
A couple of pointers, from the end of high cup nick,(viewpoint) stay to the right of maize beck as the other bridleway running parellel is a bog fest and not used.
Theres another cracking decent from the Middleton in teasdale road towards Tyne head (byroad)marked by a finger post(left) just off the summitt.
the best decent,(after a boggy start)is the bridleway from the col between crossfell and little dunfell to blencarn village,no gates till the valley bottom,and your dropping from 2,500ft,exellent!
walking! 😉 from the garrigill (greggs hut) kirkland bridleway over crossfell is an exellent alternative to the grassy/boggy bridleway to the above col.
Pubs and cafes in Garrigill and Dufton villages,best suited to a 140mm, or short travel full susser..have a cracking ride its a classic
(ideally its best done early in the summer, before the bracken gets to high,or after a hard frost!!,and avoid the shooting season). 🙄