Originally Posted by Finney
According to the official IMPS specifications for a Boston Butt, if you take a whole shoulder and cut off the picnic.... everything left above the picnic is a Boston Butt.....
But most people don't find them that way in their stores. Another horizontal cut has been made that removes the meat above what you are used to seeing. What remains though, is still a Boston Butt. So there is a lot of meat you aren't used to seeing on your Boston Butt that is still officially part of the Boston Butt.
from what I understand, the top isn't cut(ie money muscle) on a Boston butt.......only two parts come from the shoulder, the top and the bottom........name them what you want.
This video is the best way to see it........the money muscle is at the very top of the shoulder. This is a small pig
YouTube - Jeffrey Ruhalter how to butcher a pig