>I like the method of oil on the floor with a separate sheet of >aluminum under each main and rolling the a/c fwd/aft observing sheet >displacement relative to the floor! +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
That method might indicate some degree of misalignment but gives no definitive information on how to correct the problem. I'd prefer something a bit more scientific. Larry Flesner
