Efforts at using the leash to point a camera were successful failures. The mane requirement is eliminating oscillation.
Installed a full PID controller which eliminated most of the oscillation, thus causing attention to be drawn to 1 body part instead. It still requires a perfectly flat surface to be the most stable. It needs a smaller integral limit. It might use a smaller D. It's never going to be perfect since the task of picking the heading is done by a transducer mounted on a shaky platform. The transducer is finicky.
The mane problem is centering on the 1 body part isn't the most entertaining composition. The body part is extra large compared to other animals. Defishing deemphasizes that body part. Defish can emphasize the sky or the ground.