I went a 0.5 smaller than I initially thought when I first bought Vass. I was able to use a full leather ortho insole from AE in a 40 (F last) so I think 39.5 will be my plan for the F in the future. I picked #75 (stock model) since I wanted a tan wingtip oxford. I had a pair of C&J Cliffords in the past but the heel slip was just too much. Could have just gone with EG but I thought this would be a nice opportunity to try Vass again. Second is #89 boot since I'm in MI now and bal boots every day of the week might be too much with the Wolverine/Red Wing pack.