[mrpogie]

Now all you have to do is connect the dots. One thing that is important is the deepest part of the lip is closer to the top than to the centerline. That's where the 1/4" mark towards the top comes in, that's the deepest point. I neglected to scribe this in but you can put a pencil mark on the centerline at 1 1/16" on the two sides as that is where your tracing should intersect the centerline.