Diffult to say I'm afraid. I'm something over an 8 - 8 1/2 in the Clarks I've got on at the mo', and US 10/UK9 in Vans and take a 43 in Sidis. The toe end *is* very close to my toe, but since they don't move much when done up, it's not a problem. In fact, since they're the Lorica versions, which stretches over time, if I've bought a larger size they might not fit now anyway (as an ex-colleague found), and the toe's stretched a little too.
They are a bit on the narrow side compared to some shoes (the only comparison I have is Spesh), so it'll depend on your foot width.
A brief google came up with this:
http://www.tritalk.c...pic.php?t=75679
http://www.timetrial...41
-which would suggest going up a size (so I guess to 43), based mainly on the width
If you've got particularly wide feet there's the Mega width version.
FWIW, I wound up buying a pair of Dominators s/h, virtually unused 5 or 6 years ago - the guy that bought them found they were a little too small
Excellent shoes tho' - my first pair lasted ~5 years (sole cracked from too much poor bunnyhopping), I've been on my second pair since ~2000, and all I've done with the s/h pair is fit the cleats..
