This docDB entry contains: two versions of gscalers.param for use before and after the early July '19 major power outage; an overview in ppt format with a fairly detailed uncertainty estimate (with BCM1,2 we achieved ~0.5% over a wide dynamic range); an Excel file with the individual bcm calibs, their weighted average, and the error model; an enormous and slow Excel file with lots of residual plots for 1.4 days of EPICS bcm data which I converted to the new calibration parameters.