Jason and I rechecked the alignment equipment as it was left setup from this morning and found no changes (YAW was at 25micro radians CCW needing to rotate CW to fix).
Next we broke down and reset all of IAS equipment again. We found a YAW rotation of 65 micro radians CCW (a delta of 40 micro radians)needing a CW fix.
Considering the complexity of the whole setup, the number of equipment pieces and fairly long shots this difference of 40 micro radians (8 arc sec) is probably not out of line.

Ball is now in the ISI vs SUS court