Using short, hard pipe between the valve and the cylinder is important for achieving good control of a hydraulic motion system (if you must use hose, see the When hose instead of pipe is acceptable topic).
Watch a live demonstration of short pipe vs. long hose:
https://www.youtube.com/watch?v=FMJNA_sB5n4
You will see that the long hose oscillates, and the short pipe does not
Long hose:
Short pipe:
For more videos, see Delta Motion’s YouTube channel: https://www.youtube.com/@DeltaMotionControl