Alexa, Sheila, Dan, Evan

With the COMM PLL locking robustly again, we have been able to proceed with little trouble to DRMI3f with arms held off resonance. We then tried to proceed further by letting the ISC_LOCK guardian transition the CARM sensor from ALS COMM to sqrt(TRX+TRY), but this blew the lock. So we will have to diagnose the transition sequence more carefully.

DRMI ASC with arms off resonance continues to be fragile. We already know that the PRCL loops require careful tuning of the pointing onto the POP QPDs in order to function. But tonight, even the MICH and SRCL loops would blow the lock when the guardian turned them on.