PI damping working, though all gains required a sign flip. Successfully damped ETMX mode while ETMX ESD was in HV mode thanks to recent mod.

Modes 17 (ETMX), 25, 26, 27 (all ETMY) rang up. All four have been in guardian and were damped tonight with a sign flip of the gains. I was able to check some phase optimizing but locks were too short for much investigation. I've saved these changes to the guardian and they auto damped the next lock successfully.