But if they fit you well on all other aspects except the instep, then I would not change size. The sz40 will then be too small instead, better to attach a tongue pad, have a cobbler insert a professional leather tongue pad, or insert small insole which goes from the middle of the shoe and back.
hmm ok - getting a bit confused with peoples comments and making me doubt myself with the fit and also my next pair. I'm thinking the 40 EUR will be more snug when new and feel comfy when broken in - just like I've experience with C&J, however the 40.5 I have now seem quite ample in the toe and maybe also width wise..
Oh maybe even the F Last isn't for me....(?)