Alenna noted that we will have CP-Y spots on the ballast baffle even when the CP is propertly aligned (which is why we eventually want to remove/fix the baffle), so I swept the CP in pitch and yaw and found a minimum in scatter coupling at about -300 p, 300 y.  The varying noise from the pump on HAM1 interfered with the measurement, so I think I can further minimize the coupling once the pump is off.