In reply to Frank R.:
> Impressive quads aside, how would you rate them for general hillwalking then? Obviously without any scrambling, etc.
The only issue I would foresee would be fit, which is - to a large extent - a personal thing; however, the reason Scarpa have reduced the volume in/around the forefoot/toe box is to lock the foot in place whilst running and racing. If that works for you, great; if not, less great...
> Most lightweight running shoes tend to not last very long there in my experience, so any sturdier sole and build would be a welcome change. And there is a market for lightweight running shoes in hillwalking use because of being lightweight.
I completely agree with this. A decent pair of fell running shoes can easily double as a lightweight shoe for hillwalking or as an approach shoe. The other shoe it'd be worth taking a look at, which has a very different fit (i.e. it's much wider) is the Ron Hill Reverence. It's at the opposite end of the spectrum as far as width goes, but ticks a lot of the same boxes being highly durable, whilst also being impressively light (again, its 'light' as opposed to 'superlight').
> The one off-putting thing is the non‑removable insole. I prefer moulded orthopaedic customs, as my arches need some support. I can sort off understand their preference for gluing it in a running shoe (less chance of a free insole crumpling up during a run), but it's still a bit of a bummer.
Thankfully probablylost has answered your question - it is possible, you just have to remove the insole, which sounds possible - if not ideal.