Lidia produced a 200 GeV sample from RFF. I ran the calibration code in StEmcPool/StEmcOfflineCalibrationMaker over it. Here are two plots from the code.

Fig 1 (MIP peak location for all towers in ADC)

Fig 2 (Electron E/p, black all, blue positively charged, red negatively charged, E comes from using ideal gains, and relative gains from 500 GeV analysis)