At the beginning of the shift I did an initial alignment and (after a lockloss at CARM_TO_TR) reached ENGAGE_DC_VIOLINS. From here I waited for the ASC signals to converge a bit and went to INCREASE_POWER. At this point, several violin modes were high but not increasing (ETMY 1,6   ITMY 7   ITMX 13). We lost lock after about 15 seconds, with MICH P ringing up the loudest/maybe earliest. The last relevant command in the log was changing LSC_PRCL1_GAIN to 10. Looking at the violin modes before this lockloss, I don't see any of them ringing up significantly.

The next time I reached ENGAGE_DC_VIOLINS, I checked RF18 and RF90 against their ENGAGE_DC_VIOLINS values during the last lock (per suggestion #3 in 50796):

RF18 (before): ~98,         RF90 (before): ~33.5

RF18 (now):    ~101.5,     RF90 (now):    ~32.2

I reduced MICH P gain by 70% (per Keita's suggestion) and tried INCREASE_POWER. We lost lock again, with CSOFT and DSOFT railing right around lockloss. The last relevant command in the log was maybe setting TCSX,Y power requests to 'PRE-HEATING'?

At this point I realized that Travis' improved violin damping gains were not hard-coded yet, and that I had to change them manually. I have since done that, and am currently at ENGAGE_DC_VIOLINS waiting for ETMY modes 1 and 6 to decrease.

Additionally, (per suggestion #1 in 50796) I checked the IMC OSEM's against the last lock and they have very similar values. Optics that were off by more than 15 (somewhat arbitrarily chosen) from their values during the last lock are listed below:

IM4: 50 off in pitch

RM2: 30 off in pitch, 80 off in yaw

OM1: 30 off in pitch

OM2: 50 off in pitch

OM3: 70 off in pitch, 85 off in yaw