It has taken tons of time, experimentation, learning, testing, failing and finally succeeding to get all the tendons behaving as I want them to as they connect the finger joints to the wrist and forearm. At present count it consists 1,385 components, including mesh objects, empties, curves and armatures. It includes dozens of drivers and constraints.
I have been working on this for over a year now. Next step is to connect the tendons to the lower forearm.