The deal ones don't have the wider rear sole to stop me from overpronating.
Till I read your post, I didn't even know there was such a thing as overpronation. Is it possible that some of us are overpronating too, and don't realize it? How would we know?
I imagine that in the past, doctors analyzed people's pronation by having them walk in soft materials like sand. Nowadays they probably use laser sensing equipment to create 3D pronation animations with graphs, blinking numbers, and so on. They may even cackle a bit whilst doing so.
Do people
underpronate too? Besides using the pronation-correcting shoes, do you ever try underpronating relative to your normal stride so you'll end up somewhere in the middle? If so, was it helpful to practice this with sand and/or lasers?
Apparently it's also possible to overpronate one's hands—which would affect keyboard use, and make the topic even more relevant here on GH. I considered starting a Pronation topic, but most people would think it was some kind of patriotism thing and go on about how great their countries were. There's already so much of that, and I'm sure you'll agree it has very little to do with the correct angling of feet and/or hands.
