This is out of my realm of knowledge, like a lot of things (lol), but does it make a difference what size and type of tires you're running when you set the alignment with these specs? Signed Clueless
Type, yes if you're talking bias ply vs radials but not so much for most radials. Some tires, depending on width will have dramatically different symptoms with small changes in alignment especially if there is any play or looseness in the bushings, ball joints, tie rods, etc. The power steering systems seem to have much more play and road steer with wider tires than do the manual cars. I've had both, manual is much tighter. The specs he provided are a good starting point and like the others have mentioned, castor is the main one that changes with power vs manual steering.