The Y-Arm elliptical baffle is aligned within spec. < 3mm lateral and vertical However, the X-arm continues to give us mounting errors. This may require the mounting base to have existing holes elongated in order to mate up with the threaded holes on the stage "0" or at least an investigation into why we are unable to fit it up in its aligned location. If holes need to be slotted we will loose a week with the dissembling, modifications, clean and baking reassembly and installation. A week longer for the spool to be out. Another option may be that we can remove the baffle modify it and reinstall and align it just prior to installing the ITMx while we have an open path. I will notify Calum, Lisa, Mike Smith, Mike Landry and Brian as LLO may see the same problems