[Hydratech®]

Contrary to what most everybody thinks, pressure and volume can be adjusted around to help a bit, but the actual steering feel or firmness is dictated by the input shaft of the steering gear. It looks like just a solid splined steel shaft, though it is actually a torsion bar, meaning it will flex under twisting load. The stiffer the torsion bar / input shaft is, the firmer the steering response will be and vice versa. Yes, some tuning can always be accomplished externally, though this is a classic case where the actual steering gear is where the difference is. There were no changes made to pump flow or max relief pressure, yet the replacement steering gear has no feel to it compared to the Lee prepared box.

Yes, you could play around with all different kinds of PS system tuning, though it sounds to me like you would ultimately be vastly happier to have the Lee prepared box freshened up and put back into service. I say drive it with the Borgeson box until the Lee box comes back, then re-install the Lee box and live happy. I am sure there are plenty of people out there that would gladly take the Borgeson box off of your hands after you are done with it.