Sheila, Jennie W
Sheila and I changed H1:ASC-CAM_PIT1_OFFSET down and went through a point which increased the build-ups in the arms.
She has added this camera offset to guardian.
CAM1 is the servo which moves the PRM to keep the spot constant on the beamsplitter.
See Sheila's pic showing where the best offset is.
We are planning to optimise the A2L gains for each ITM and ETM after this.