I am in complete agreement that a power beyond valve is needed or at least be best. But just for the “fun of it” what would happen or not happen if say I just put a cheap log splitter valve on it with no power beyond, no detent, just a straight 3 position 4 way valve. Pressure would flow straight through TO the lift, tilt, quick attach valve when the cheap simple valve is in the neutral position you know (open center). Now it could mess with relief settings is one thing. By answering this it will help us understand power beyond. Curious to know why it would not at least half way try to function. Or what might tear up?
Is power beyond a check valve? Is it a regulator? It would be good to know what is going on when this valve works. Maybe as I research I will be able to answer my own question. But right now I do not have a complete understanding.
I will go ahead and ad this but do not concentrate on this and forget about the above concern.
Take a rope and tie it around you waist. Now take your left arm and stick it down through the rope.
Now leave it there and go out and design a steering system for that condition.