. You have been on fire with your helpful responses and I appreciate it. I'll assume you are simply taking the standard widths in U, F, and K last. I should be a 43.5 then as I'm a 9.5UK for Rain. Thanks
Gosh, we all have such different experiences with Vass.
I wear a UK8.5 in Rain (can go down to UK8 for derbies / suede), UK9 in Simpson.
EU42 in F last, EU42.5 in U last, EU 43 in K last (but I think I can go with EU42.5) , all in F width.
8.5E for EG.
Generally we would try to keep shell cordovan away from rain / wet conditions.
There isn't any winter in my country but I wouldn't wear them for winter / rainy seasons.
I also think that generally, for wet weather, or rough weather conditions...
I would make up a boot / derby shoe, in scotch grain, with commando or dainite soles, goyser stitch / norwegian / storm welt.
Get a really chunky pair of ass kickers.
I don't know about kudu, but CXL would be great I agree.