I have a question concerning a Profile of a Surface callout on a print. I've attached a .png that shows the drawing (dimensions changed to protect me). However, I am not understanding how to apply the Profile of a surface callout to the part (Balloon #7). Please note that above balloon #4 there is a circled "B2", and below balloon #6, there is a circled "B1", which I did not put into my snagged excel rendering. Thanks in advance for any explanation that I can understand.