Evan, Alexa, Sheila, Chris, Dan, Stefan

It was hidden under an ITM...

Today we moved the remaining uncontrolled DoFs, looking for power recycling increase. This first required:
 - Offloading ASC loops to top stages for ETMs. Note that since the green WFS were using the HOLD OUTPUT button, they are now no longer compatible.
 - Offloading all other ASC loops to top stage as well.

Then we moved ITMs (mostly differential, but more Y than X), as well as a little PR3, looking for more recycling gain. Indeed we increased the arm build-up: the Y-arm went from 900 to 1150, the X-arm from 800 to 1020. The recycling gain thus went from roughly 26 to 32.

However, at that point we started seeing a decrease in DRMI build-ups (the arm power seemed to continue to climb). Also, once there, the current ASC loops started pulling us away from the best spot.

We set the IR TRANSMON QPD Offsets to zero the QPD signal in this best arm power configuration. The attached plot shows the "good" position for PR3, ITMX and ITMY.