The Wimberley Sidekick is a well crafted gimbal mount. They've thought of everything.
The documentation is excellent too. Money well spent. Besides, it's fun capturing motion.

While the boys were at tennis I headed to Sugar House Park to practice
shooting flying birds: 1st time. I returned for Chase (11) after an hour,
picked up chum (large fry), drove back to the park, then showed
him how to use the gimbaled camera. He wouldn't give it up.