that is interesting, do you find this issue on all your barrie last boots. I have had the experience in which trying on a shoe the first pair does not fit right and then the second pair fits properly. if you can get to a brick and mortar store try on a boot going up a half size
It is actually an issue of width. The 8D fits me perfectly on Barrie lasted shoes. However the D in Barrie boots has become quite snug across the top of my foot.
I tried a 7.5E but in hour two of your break-in method determined that this fit was not correct. I am concerned if I move to an 8E it will be too big though. In speaking with Leffot they mentioned that a lot if customers have moved out one width lately in Barrie boots compared to Barrie shoes. So I was curious if you (or anyone else) had this same experience.