One intrepid pilot flew his 5 hour silver endurance flight on our ridge in February! Brrrr!
He must have been bored stiff as well as frozen stiff!!
No offense to your ridge, and I'm sure the scenery is breathtaking, but I've done some ridge-soaring at Camphill, and it gets mind-numbingly boring after an hour or so. 5 hours - I hope he interspersed it with something to keep the mind alive, like beating up the ridge at low-level!
FBW