note to the previous post; Your tailstock shouldn't have any "wiggle" in it even before you clamp it down. You may need to adjust the setscrews on the back of the stock at the rear rail. Mine is rock solid and accurate.
How often are you folks greasing your linear bearings? I don't use mine in production, couple hours a day.
I know the manual says to pump grease till it comes out of the trucks, but how often do you suppose? My thought was; pumping grease till it comes out of the bearing can't be too good for the seals.