New 5-channel 4.5" CF ESD feedthrough flanges leak! -> Douglas D., Justin B. and I tested (2) each of these, one of which was to be installed and BSC8 today prior to pumping down the YBM.  Helium responses were large and fast but we did not record the actual peak numbers as we were in a "pass/fail" mindset-these definitely FAIL!  We may repeat test tomorrow and record leak rates for the record.