Hi dave that's it.
Follow fence line from Yockenthwaite (very boggy and tough under foot. get past here by dark if possible) to South grain tarn over fence as it turns North I seem to remember. and follow bearing as you go over the first rise you should see flashing beacons leading you all the way. take a bearing as they disapear from time to time. CP on the track which you then just follow all the way down to Hellgap proper and the next CP at Cray and hopefully grouping.
This is the last tough climb.
good luck