Because Tony was relocking, I asked him to stop at PRMI while I walked PR3 further in the direction that Corey and I walked it Friday (74535).  This increased POP18, but it made ALS COMM beatnote worse. 

The second screenshot shows these trends going further back, the move of PR3 on Nov 7th is shown by the cursors. It looks like we lost some PRG on that day, and readjusted the COMM beatnote for a PR3 alignment that was giving us worse PRG. This was stable for a few weeks but some drift in the last 2 weeks has made the PRG even worse.