Originally Posted by Roger
On the basis of the four pairs of EG shoes I have, I would say that when EG marks their shoes size 10, this translates into something a little larger than 10.5US, although perhaps not quite all the way to an 11 (which would be true for C&J, Lobb, and others). As for width, this issue has been debated before on this forum, and in my experience, an E-fitting as marked by EG does not convert to an E-width US. With most UK shoe manufacturers, a UK E converts to a US D, and that has been my experience with EG as well (except that I take a UK C, which closely matches a US B). Some people feel that an EG E is closer to a US E than to a US D, but others disagree. In my opinion--and based on all of these factors--I would represent an EG 10E as closest to an 11 D US. QED.
Yeah, but my point isn't that EG runs big, or any of your points above (I happen to disagree on all your points). I don't find your converted sizes to be helpful - I find actual sizes to be much helpful. In fact, since most people are aware of the EG conversion system, and know their size based on that, saying 11D gives the impression that they're either 10.5/11D's or 11/11.5D's. When in fact they were marked something else.
My point is that if you wear EG, you know your EG size. The better way to do this is to simply report the EG size, so you don't mislead people, and then if you want to give additional information, say "I think this would convert to an 11D". QED.