I could never find any hydraulic schematic about Trimble valve used for NH and other. I found Fluidsystem that seems very well designed: could fit for all types of hydraulics, open and closed center, LS static and dynamic, safety thanks to selecting valve with orbitrol priority, pressure sensor to detect steering by hand action…
(I have no commercial relation with this company!!)
Curious to see why and how Trimble wants to use counterbalance valve?