How much advice can 1 man take??? I've done various routes over the last 3 years as described by Bob, but I'd go with Martyn's route, but just as you approach the Caldew I would be slightly to the west to cross at the large bend - short, shallow (if this weather holds), and then take a bearing to hit the trod running east to west from the Cloven Stone. Keeping the fence to the right of you off Great Calva there is a very runnable path and you can't go wrong once you get to the bottom - right turn over fence on a trod. For me this route was far better than the direct line thru heather sapping stuff (I am short mind), and the risk so early in the round would be to twist an ankle orn knee. It is slightly quicker (marginal) but for me this route wins everytime. Good luck