I have been riding with those jtek 20mm ones on my hardtail over the winter, because I also have pointy out feet. So far I love them, my life is much easier on climbs.
I run them with flat pedals – if you run a narrow flat like DMR V8 then it’s already about a cm narrower than the fashionable big wide flats around these days, which compensates for the extra width a bit. So clipping rocks and ruts hasn’t been quite the problem I expected. For you on cleats this will be a non issue completely I imagine.
I might try them on the other bike at some point, at which point we’ll see whether or not they’ve rusted into place permenantly.