Thanks Michael.

Hi John,

The bottom is tapered. The lofted horizontal curves bottom has a flat spot.
It is not really teardrop shaped.

The "natural" balloon is "flat" at the peak point, when inflated with open (bottom).

The tension minimizing math is advanced. I have not found a simple formula yet, nor an explanation of
how to plot the teardrop from the differential equations.

I previously did a "mylar" balloon script.

-Brian

(I would also consider the garlic script to be a 2D curve generator, for other purposes.)