I'm looking at suede Connaughts as my 1st C&Js. I own 5 pairs of English shoes & 2 pairs of boots. 4 of 5 shoes (2x AS, 2x Cheaney, all avg width) are a little narrow & rub at the instep. The only exception is the very generous AS 7WK last. Both pairs of boots are super comfy. Should I go up a width (F, or is it G?) for C&J (as well other English rtw shoes)? or will I be swimming in them? I guess the question is, how much difference is there between English widths?