I would stick to your brannock size. I follow -1 for us to uk sizing. If you are 3E (wide feet unless I'm mistaken) then I'd try getting the shoes in G last. I normally avoid sizing up for width and prefer choosing wider lasts. I wear 8.5E Barrie as the only American brand i have. Else, 7.5 uk for carmina but I only take the wider lasts like rain, Detroit, soller.