ETMX Mode3: FM1, FM2, FM4, +10 gain (BP, -60deg, 100dB) seems to have worked quite well. No need to turn on a damping for 505.707 (which should be checked again with 0.0001 BW to see if it's really exists). 505.707 should be watched while damping 505.710 just in case.
The new violin mode table is being uplated slowly. The modes with Damp Setting column filled out are the one that's been sucessfully damped by the filter settings indicated in the table.
Jenne, Sheila
With the long lock tonight we got to do some more violin damping. I haven't updated the wiki or guardian.
At first we thought the largest mode was the 505.71 mode that Nutsinee logged about, and tried to damp it without sucsess using the settings she described. After getting a 0.002 Hz spectrum we could see that it was really 505.706Hz. (on the wiki there is a note asking if this mode really exists, looks like it does) I tried to damp this with ETMX MODE 2, which has a narrower filter, and in the last 5 minutes of the lock it looked like a phase of -60 and gain of 30 was working, with the 505.71 notch engaged, but we unlocked before we could be really sure it was working.
We damped the mode at 506.922 (ETMX mode5) using a phase of 0 degrees and a gain of 30. FM1 and FM4. (This is different from what is on the old wiki) the new wiki has this mode not damped.
We also damped a 500.062Hz mode (ITMX mode 1, 0 degrees gain +30, also different from the wiki) With higher gain and the same filter settings we rang the mode up.
The top panel shows the fundamental violin mode forest at the begining of the lock in blue, and the end in red. (There is a tiny improvement in 505.707Hz) The bottom panel shows the 0.002 Hz spectrum with cursors at 505.71 and 505.707Hz.
A negative gain for the 505.707 mode worked for me (although it's not clear whether it damped 505.707 or 505.710).
The setting I had seems to work on both 505.707 and 505.71.