Elaine, you may also want to ask Ron Lauze and/or Arne Freyberger if any
of the adjustments made to the Harp hardware might have changed the
calibration between the harp wires and the Hall A coordinate system. For
example, if the 'Home' position for the harp transport mechanism was ever
adjusted then the stepper motor encoder positions might be offset.
A copy of this log entry has been emailed to: eschulte@jlab.org