I ran the new A2L script (from alog 77704), after incorporating suggestions from Vlad and Sheila.  In particular, now the script enables the 30 Hz bandstops in the quads, so that we are preventing the oscillation from going around the loops.

It seems to have run okay.  As a future enhancement, I might move the dither oscillation (and the associated bandpasses / bandstops) to a sligthly different frequency, since there may be some persistent line in DARM very close to the A2L freq we are using right now of 30.0 Hz.

Here is what the script printed out:

• ITMX P: Want to change gain from -1.0 to -1.01, rounded to 2 decimal places. St.Div is 26.282. Change of 0.011197837420762191
• ITMX Y: Want to change gain from 2.8 to 2.82, rounded to 2 decimal places. St.Div is 0.45. Change of -0.019285751881707114
• ITMY P: Want to change gain from -0.3956 to -0.35, rounded to 2 decimal places. St.Div is 0.115. Change of -0.04102769287242841
• ITMY Y: Want to change gain from -2.458 to -2.46, rounded to 2 decimal places. St.Div is 0.936. Change of -0.0013939077390441312
• ETMX P:  (This printout scrolled too far back in terminal history, so can't copy it to alog)
• ETMX Y: (This printout scrolled too far back in terminal history, so can't copy it to alog)
• ETMY P: Want to change gain from 4.4 to 4.43, rounded to 2 decimal places. St.Div is 0.744. Change of -0.030175185139269978
• ETMY Y: Want to change gain from 0.95 to 1.02, rounded to 2 decimal places. St.Div is 0.133. Change of -0.06945831046387796

Overall this seemed good, and Sheila noted that the coherence with the HARD ASC loops went down.  I'll check again after we re-lock.  This took about 30 mins (plus about 10 mins before that, for some last min debugging of variable name spelling errors).  I need to check on the fits and the stdevs, to make sure they make sense, since the stdev now seems much higher than Vlad's notes say it should be.