Hi Burr - my 2 cents is that the outline does not seem to be made up of any analytic curve like a conic or arc or ellipse or any predefined shape like that, it seems to be a more generic spline curve shape.

So you'd probably want to draw it with a control point curve and not with things like one piece a conic and another piece something else, because you will more likely be introducing some unwanted segmentation to the shape if you do that.

If it was explicitly called out to have segments like that, that would be one thing, but from what I see the intent is more to have a curvature continuous spline instead of any analytic segments.

- Michael