I am following Mike's tutorial for Stitching a NURBS character
Arms to Body. It seems very easy to understand but I am not getting the results that Mike did.

It was easy to detach the horizontal and then the vertical isoparms to deleate the geometry I wish to use to attach the arm.
However as soon as I make the horizontal detachment, I start to have troubles. the shape of my torso changes. and seams no longer meet up. I can also not stitch the pieces back together. I tried the global stitch as well as stitching two pieces together at a time.
So I can tell that I am lost but do not understand where I got lost.
I am wondering if my model itself is the problem.
Any advice?
-Chris