I like this idea, but the results have what I would say is "very low momentum" in them (not speaking with any kind of terminology here, just ad hoc) meaning that just as when you write L E T T E R S e..x..t..r..e...m...e...l...y... s--l---o---w---l---y you get much more wiggle in them, the two images on this page are very very wavy, as though the pen that drew them had no momentum.
isn't there a way to have lines be drawn by a hand that has inertia/momentum and is trying to follow the logical curve, but just wavers a certain percentage and correct as it goes along? This is what gets (in my opinion) the result we see. Someone drawing at a good pace by hand and correcting while he does so. not a "random deviation" around the logical path, whch is what these results seem to be more like.