The discussion at the ops meeting was on how to increase the rate of good collisions.  One thought was to increase the EPD QT window, though this could then have a non-linear effect on the MIP peak position.

For run  20162031, EPD_QTc_E_TAC_Max and EPD_QTc_W_TAC_Max were increased from 3200 to 4000, but unfortunately with only 25k collisions this is not so easy to analyze, that isnt' even really enough to fit a nice mip peak in a given tile.

But this caused me to look a little closer.  The MIP peaks are very close to the noise and much broader even with the nominal conditions.

Just looking at the online ADC distributions:

Figure 1: Selected ADC spectra from 14.5 GeV.

Figure 2: Selected ADC spectra from 7.7 GeV.