Applications for the speed controls are with cylinders where

Applications for the speed controls are with cylinders where loads can change periodically meter-in flow meter-out flow exhaust port pressure port

Solution

Applying a meter out flow control valve will regulate the flow leaving the cylinder and therefore control its descent. The raise and lower speeds can be controlled by two different adjustable orifices.

Please note that adding a meter in flow control valve would only exaggerate the dangerous negative pressures.

So meter outflow must be applied ..