It seems to be holding level now, in direct contact with the concrete floor with no steel plates flexing with load, and its that much lower to the floor, Im not 6'4"
I used T. Liptons trick of putting the tail pedestal on a single point (stub shaft parallel w. ways) and leveled from headstock, mid-bases and then tail-base and removed stub shaft as tail-bases adjusters took the weight. The adjusters seemed much less interactive than before when the tail was not on a single point or maybe it was the flexing plates. Will let er sit for a bit and see if I get any drift.
I cleaned up the tail-stock and found an oil port for one side of the V was blocked, had to use an 6"long 1/8" drill, a pokey wire wouldn't do it, a chip or casting slag was in the way. I fixed the abused/cracked quick clamp. Takes a lot of solvent to clean the residue off all those parts.
I think I should lift off the top of the carriage and make sure its oil ports are open, and Z reliefs are clean, its been sitting too long. Trouble is everything is crane removal time, its big for one person.
There is an oil pump in the apron with a filter but I'm not sure how it functions but I know there is a filter inside the sump, so Ill start with that.