I assume conclusions re the unanticipated 'discovery' will eventually surface?]
Probably not unless that Table and Tie Bar Assembly is moved back to either the Shorty or the GoTo machine.
The way it acts, I have concluded that the vertical supports are not parallel (for whatever reason). I could push those tapered pins and reassemble the Tie Bar Assy but why. It would just be my luck to break the tie bar.