What would really improve these videos, is 2 key bits of data: how long and how wide are the reviewer's feet? The reviewer could then say I wore size "x" and they were tight / OK / loose.

See pics below - I kept my socks on because it's coming up to tea time.

Brilliant idea.

I'm tempted to get a pair for thin cracks. Currently using Scarpa Force, these are potentially even better. The perfect size for me, from trying on a 41 and 42, would be 41.5. But I don't think you can get half sizes.

Totally agree, pretty sure I said this last year too. You can now get a 3d scan of your foot in decathlon but UKC still relates size in adjective measures. "I'm a 9 in street shoes and usually an 42.5 in brogues, and I have feet shaped like dodecahedron, so I downsized by 1 to get a standard fit."