: Hello again... After graphing the forms for the Guillemot, I realized that I
: left out the 70 degree diagonal. When I went back to plot that point, it
: is not on line with the forms that I drew out ? It plots outside the form
: that I drew... Did I do something incorrect? Should I be concerned?

The diagonal is very optional. It helps define the curve at the chine, but you can do just fine without it. If it did not end up on the curve, you probably did it wrong, but instead of spending a lot of time figuring out how to do it right, just ignore it.