Thank you for input Rogerp I take 9.5D US & went with 43 on K last DM shell cordoven. And planning on getting either 43 or 42.5 on U & F last. If you have any input on them would be greatly appricated. I think we are similar size wise.
Main difference in fit is in the toe box. K is narrowest, followed by U, then F. Some take a half size less for F. I don't. That said, if you are a true 9.5D, 42.5 should be your starting point for F. I am sort of a 9.785 D 2/3 with a high instep and wear a 43 in each of those lasts.
I realize it's tedious, but can some people with experience suggest a good starting point for Vass F last sizing?
I measure between 7.5 and 7.75 on the Brannock, and I definitely have a narrow foot (even more so the heel than the forefoot).
I wear a 7.5 length in all the normal fitting Alden lasts (Hampton, Aberdeen, Leydon, etc) and could probably take a B width, though I haven't tried. I get a nice fit from the Hampton in 7.5C when I wear thick socks.
I'm a UK 6.5E in the C&J 325, though I can again wear thick socks so a narrow would be better. I take a UK 6.5E in the C&J 314, but that's a little short. A UK 7 extra narrow would probably be a better fit.
I'd like to figure out my sizing in the F last. Having read this whole thread... I'm trying to decide between a 40.5 and a 41. I'll probably pick up a standard width for fitting purposes rather than MTO a narrow right of the bat. Any suggestions would be much appreciated.
CJ 325 7E
EG 888 7E
Alden Barrie 7.5E
Alden TB 7.5D
Viberg 2030 7.5
Vass F 40.5 standard