The COMM beatnote has been a bit low lately, and coupled with higher microseism and temperature changes, it has caused us some locking troubles. So today Sheila and I brought PR3 back to a time that had a good top mass osem alignment around 20 days ago, then we went to ISCT1 to get a better buildup by adjusting the two beam splitters circled on the table layout attached while trying to maximize H1:ALS-C_COMM_A_DEMOD_RFMON. I mainly had to move in yaw, walking a bit with both optics.

In the end we ended up with the beatnote around +3dBm.