I quickly made a simple FMS event display that shows the ADC value with a color code and the TDC value with overlay text.
These are 100 sequential events from day 90 run 18080020.

This pdf has a first page showing a plot of hit count vs event number
The rest of the file contains pairs of pages for each event (1: TDC Distribution.    2) Event display with indicated ADC and TDC counts

Look now at the distributions of average TDC's over the surface of the FMS.