How to Indicate A Vise in Just One pass

[TomG]

Put the indicator against the side of your table and run it back and forth. It's sounds like the gibs in the table may be loose or worn. Also try rocking the table by hand, deflection should be minimal. If it's the vise jaw you would get the same reading regardless of which way you feed it. If it's the indicator sticking, you should be able to see it moving the stylus by hand.

Tom