I've read this thread through but am still unaware of my size since I haven't found a common reference point. I am guessing I would be a 6UK in the Rain last.
6.5 UK in the Tricker's Stow
6UK in Paul Smith
40 in Margiela
40 in Jil Sander
I am going to try on the Allen Edmond Park Avenue tonight, but the only references in this thread are to the Alcudia models.
p.s I also do not have wide feet, if that is any help.