Alexa, Rana, Ellie

We noticed that one of our locklosses during the CARM offset reduction (after we're transitioned onto AS45 -> DARM) seems to be due to ADC sauration in ASAIR 45 so we put in an ND1.0 screwed onto ASAIR_A.

In the attached plot you see that ASAIR_A_45 goes to 0.0003. Since we have a -160 dB digital filter between the ADC and this point, this corresponds to ~32000 counts at the ADC.

OTOH, REFL9 seems to be pretty puny (~500 counts with half of the full buildup), so we're turning up the gain on there by ~10 and turning on the Whitening filter to see if it helps the CARM noise be low.