I wanted to note that in order to tighten a couple of the PMC dog clamps, I had to disconnect the cable to the accelerometer that's near the PMC.  The accelerometer appears to be very strongly attached to the PSL table top.  When I went to remove the cable, I found that it wasn't fully secured to the top of the accelerometer, and I don't know if that signal has been having noise issues, but wanted to log that.  The cable is now reconnected and secure.