I didnt actually check my Boye set before I made the comment, but I did remember my 10.5s...
They may have been talking about the metric sizes, because I saw that later on when I was looking at charts to show the difference. I dont know why they would say such a thing tho, but maybe that person just overlooked things too.
I just remember that I saw this on something talking about long stockings and that you can use half sizes to decrease down the lef so that it doesn't show so much that you are going down in size. or something like that. It made me very curious.
I still am...But No luck...so maybe they just didnt know that America was dumb and made their own system...(I think it'd be better having grown up learning metric)