Following up from my alog77064 saying that this needed to change, today I moved SRY triggering from POP_A_DC to AS_C_NSUM with new trigger threshold of upper=0.005 and lower=0.004. This worked well and gave us a quick, well aligned DRMI during main locking. The Acquire_SRY state used to lower the trigger thresholds after a few minutes for times that we had less power on POP_A, I've removed the lowering but added a notification to check the alignment or triggering.

I've updated ALIGN_IFO to reflect this and committed to the SVN. I anticipate we might need to fine tune these thresholds over the coming weeks.