As IAS told us last night we were 0.4mm South, we disconnected the Vertical Actuators and then based on the Dial Indicators moved a total of ~1/2mm North.  After this, IAS told us we were 0.9mm too far North...What gives?

Jason checked his numbers and confirmed.  We moved the HEPI back South ~1mm and now IAS says we are 0.03mm South.

So now the ACB is being aligned--when they are done, SEI will change/add Viton to vibration absorbers.