@crowriver, from Balerno to Canal it can turn muddy and a tree might fall over the route but never any land slides. They do appear further down but haven’t ventured that way due to the diversion
I do come up st Bernards and even up the little cobblestone road at Dean Village then swoop down the steep cobbles and back up towards the Belford Hostel. Of a Wednesday evening. That is all paved though. Has had collapsing cliff face in the past and there is a big fence thing but not sure how much containment the fence would provide.