I damped ETMY violin modes 18, 20, and 12, and all are below 1e-5.

• 01:15:12 UTC - started damping
  • eventually turned all gains except mode 18 and mode 12
  • mode 18 gain sat at -60 most of the time
  • toward the end of damping mode 18, I increased the gain to -100, and mode 12 started to ring up
• 04:14:00 UTC - ended my focus on damping mode 18
• 04:37 UTC - all ETMY violin mode damping turned off, as a test, since all peaks were small
• 04:44 UTC - started turning damping back on, with lower gains, looking for a stable combination for all gains
• 05:44 UTC - restored damping to mode 15, all modes damping
• 05:55 UTC - it's not visible in the monitor output for mode 20, but in the spectra I could see mode 20 ringing up, so lowered it's gain from 1.0 to 0.2
• 05:55 UTC - last gain change
• 07:25 UTC - ETMY violins have been stable