I have put beam dumps in front of both of the end transmission QPDs so that I could measure the dark noise. They are still there.
I checked that the Yend QPD sliders and switches were doing things as I expected. I couldn't do the Xend since c1auxex is still lost (elog 10165). I'll post plots and actual information on this checkout, as well as my calculation of what this dark noise means in terms of meters for CARM when we're using 1/sqrt(trans) signals tomorrow morning.