Step 4: Neck Facing
In the diagram, The "T" cutting line is in red. The top of the "T" is about 9 inches, and the base is about the same, but can be longer.
The diagram shows the stitching line in green. I sewed this line. I re-enforced every corner. The "T" will be cut right up to the stitching lines.
I cut along the cutting line.
I clipped the curves to the stitching. On the corners that will form the tips in the neck opening, I cut the tips off diagonally, leaving the corner stitching intact. This will make turning those points easier.