We obtained a reliable lock acquisition to reach CARM_NULL_1F with noticeable smoothness, but the locks achieved were nevertheless unstable and had an average life expectancy of a few minutes each.

We re-engaged COMMp, soft modes and diagonalization in the automation at CARM_NULL_1F.

The unlocks observed were different in nature and not easily explainable with loop instabilities. In particular, one of them was due to a glitch in the NI suspension that shot the F0 away by about a hundred microns (Fig.1).

We decided to decrease the CHRoCC voltage by another 10% before tomorrow's morning shift.