Quoting myself here -
So...I was kind of frustrated looking for some Quai's in the 10.5 I mentioned above and finally saw a great deal ($170) on some 9.5's, so I figured I'd listen to ya'll again and gave 'em a shot. I forced myself to wear them for a full day and I must say - you guys were right - these aren't bad after a wear, and, I'd still prefer a 10 but the 9.5 feels fine and is wearable for 10+ hours a day with no pain...it is possible that the BHM's just fit differently?
nope, always buy your true size. if you don't know what your true size is, go measure them. half size up leads to foot slides inside the shoes unless you choke the laces to death.