Started reworking on EY ALS table.
Green beam was injected into the chamber and PZT servo was enabled to center the beam on QPDs. Whitening gain of QPDs were very high again so we had to decrease the servo gain by a factor of 100. Whitening gain MEDM screen was all white so we left it as is.
After confirming that the beam was centered on all four irises, we started removing the Faraday from Drever lab and realigning.
Some observations:
We'll level the beam path and start over tomorrow though we don't know if doing so will improve the transmission quality.