hydraulic actuator-mechanical synchronization

[lax0o7]

I am currently doing one project on hydraulic actuator synchronization using mechanical coupling( rigid coupling) as part of my internship. it is cost effective, don't have any complicated controls. just pump the fluid. since it is rigid and the mass is centralized the volume and pressure should be equal to both actuators.
This is the basic structure -->
when I was doing my research, I came across so many models which using other techniques like servo valves, but I hardly saw anything about the mechanical coupling., What are the disadvantages of this system?
PS- the connection is rigid, the weight is centralized, might have slight leakage (assuming, since it is for practical use).

[BruceAmmons]

Why did you post this in the vision section?  Does any part of the project involve vision?

If you have two actuators, you need position feedback for each actuator.  You also need rules that relate the two positions.  After that, it is pretty easy.  The position setpoints for each actuator are generated using the rules, and you use PID to control each valve.

Bruce