Sheila said that LSC-POP_A caused us locklosses in our early 2022 efforts to power up. Now we are running with a large SRCL offset we have more RF power on that diode ands should be wary of this.

She suggested we looked into if the LSC-POP_A photodiodes were saturated in some way, not necessarily the ADC counts but in the RF electronics, I've looked at 4 lock losses and see no evidence of POP_A saturations so far, see attached. Sheila thought this might be hard to identify. We could try the LSC sensing matrix using Craig's script to check the phases, that's what we did to help us improve this before 62662 62486.