Now run a single velcro across the top (middle) of the shoulder).
Now add another, directly next to the first. For my eye, I wanted the first towards the front of the body, so the topmost edge lined up with the middle of the shoulder. The second just butts up to it.
This next bit is to make sure we record the placement of the shoulder tip relative to the side of the body. That’s really important.
Start by overlapping the side-most princess line velcro at the waist. The new piece will be at an angle. You may need to adjust it as you go.
Now bring it up to the shoulder tip. If you’re working with a Real Live Human Being ™, said RLHB probably has arms. The shoulder tip is where the shoulder bones come together. (Some people say it’s where your shoulder creases when you raise your arm, but I’ve been several sizes where that wasn’t true anymore.)
The shoulder-tip velcro crosses the bust line velcro. Go ahead and tap it down so it stays.
In the back of the body, bring the shoulder-tip velcro down the the side-most back princess line velcro and press in place. (Press the join with the back bustline down as well.)