When you were messin' with this on other cars, did it seem as though the front brakes were getting a lot less pressure than the rears? That's how this one is acting. It stops straight but the pedal goes down about an inch and a half before any real stopping force is noticed. Any more pedal force than that and the rears lock.

I guess what I am trying to figure out is whether or not the front to rear bias issue is causing the somewhat low pedal even with the car sitting still. If not then I must still have air somewhere but I haven't a clue where it could be unless there is a bleed procedure specifically for the line-lock that I don't know about.
If the reman MC was bad the only symptom of that would be the pedal drifting down right?