Don’t be foolish.
If the Finnigan Pin has been properly maintained, it will allow the air pressure to be equally distributed amongst the tires, so they should all have the same air pressure, unless the pneumatic impedance shunt strip has been placed to offset the engine weight from one axle to the other, provided the differential shifts the pressure during high velocity steering maneuvers.
Face it, it’s mechanical. The more modern digital interfaces improve performance. <;^)
Thank you, I know I should be more attentive, but I have full confidence in my Zerx Tube Technician.