We encountered an issue with mounting/tuning the BOSEMs located on the Quad Top Mass. To raise the flag assembly high enough to fully interact with the light path, we placed two 1/4-20 flat washers under the Magnet Retainer (D060418). (Note: Cannot add more than 2 washers as spacers due to the short threaded shaft on the Magnet Retainer.) With the washers in place, there is just enough height to get full light block when the adjuster is run all the way down. On the Quad-2  Reaction Chain right side, we are just able to get half-light with the BOSEM fully down.

In the attached photo, the flex circuit is just about to contact the base of the OSEM mount, and there is around 6mm of travel left on the adjuster. If the OSEM is cranked down enough to get full light block, the flex circuit is folded and possibility kinked against the mounting block. Given the circuit path is at the edge of the film, and the flex circuit could be pinched between the OSEM and the mounting bracket, cutting the film and shorting the OSEM is a possibility.

Mark Barton is looking into a long-term solution.