Either our versions are calculating differently, are using slightly different values for input, have slightly different pressure limits, or one of us is changing the cartridge parameters slightly.
Mine gives almost identical charges, but doesn't show HIGH PRESS until the 65.3 load.
I'd have to ask Wayne why he sticks with CUP, but I'm going to guess that it's related to the original algorithms coming from Powley, and those are the units he worked with. (CUP = Calculated Under Powley, LOL?) If you change to psi, the calculations would all have to be re-done.
