Xen, you were bang on the money with that - NBs arrived yesterday... really nice shoe, but wow is their sizing ever messed up... I reckon they come up a good size bigger than most other shoes i've tried... the 10.5 was huge, held them up to my DCs in the same size and you could see how much longer they are.
I've returned them for now, but may hunt out a smaller size in future as they feel pretty good.