Cheaney, by and large, runs narrow in the heel and a bit wider in the toxbox/vamp. More than any competitor I have seen of it, it uses a more pronounced combination last. If you have a long and thin foot like me where you're especially narrow at the heel, you'll be happy.
I wear the 11525, so I can't help as much on the 11028, but I do go down 1.5 sizes on the 11525 and the 205. If you're curious about how I fit on other lasts to give you an idea:
Cheaney 11525 - 11