I only ever did it on mtb....weather also sounds like good omm prep! I was up wansfell with my pack on wed just to see how the foot felt and it was definitely like a washing machine, sheets of rain passing across Ambleside below!
Tomorrow I'm running back on the S route (Chinley Churn, Brown Knoll, Mam/Lose, Win, Stanage), 3rd time I've run home now, first time over the N edge, don't run there much anyway and it's not much fun but good training.
That is a good route. I'll like to do that. Kim