[Jenne, Elenna]
As a reminder, Jenne had engaged a "slow let go" servo for beamsplitter pitch during O4 because of some possible heating transient that affected relocking, see 85002.
Now we have the BBSS, so we don't expect to see this issue. I undid the steps that Jenne did in her alog above to revert the settings:
- I re-engaged the BS M1 ASC lockloss trigger, see attached SDFs in SAFE and OBSERVE
- I removed the separate BS loop on ISC_DRMI line 66 that kept the M1 LOCK pitch gain set to one and disengaged the integrator in FM1, and added BS back into the list on line 63
- I returned the BS to the list on line 133 in ISC_DRMI that clears the history in BS M1 LOCK P and Y, we had separately only cleared history for BS Y so the BS pitch history would slowly bleed off over time
ISC_DRMI is loaded and I checked the code to the svn.