We reached 50W relatively stable and reliable, and were able to use the POP A offsets to drag the interferometer around.
I recorded that particular alignment vector, and stuck it into a script. This now allows moving the full interferometer in this degree of freedom very rapidly, without taxing the soft loops too much.
We see a clear recycling gain dependence on this degree of freedom. However, one oddity is that when we reach the maximum recycling gain, the AS90 buildup becomes very ratty. I am wondering whether we get close to clipping somewhere with this move, or whether it is related to our SRM alignment dither.
The alignment vector for this move is
# pit
gppr3=0.07
gpprm=-13.2
gpim4=-325
gpsr2=-2.39
gpsrm=3.2
gpex=-0.7
gpey=-0.7
gpix=-0.45
gpiy=-0.35
# yaw
gypr3=0.028
gyprm=11.07
gyim4=61.22
gysr2=2.22
gysrm=2.74
gyex=-0.5
gyey=+0.5
gyix=+0.32
gyiy=-0.31