Interesting and timely for me. I've just had a pair of defective boots replaced by the manufacturer with a different model, same size. They feel too tight. I stopped by EMS in Concord yesterday, as they are known to have a great shoe department staff and had my feet measured. They said I should be wearing an 8-1/2 or 9 and not the 10 I've been wearing for several years. Any thoughts here? Should I get a second opinion? Is that the reason I have trouble with morton neuroma type pain? I asked about black toes if the shoes were too short and he replied that the cause of black toe was too much movement in the boot. Now I'm really confused.