To identify stray vertexes in max you could move bones around an see what they look like, can't you? Or is this a special case? Cause I've had vertexes multiply one bone before. I just select that bone on the bone list and give it the added value of the divisions. Then it works. Anyway, nice of you to make a tutorial, hope it helps people out.
they look perfectly fine in 3dsmax
its just when they hit brawlbox that they corrupt