[Jenne, Georgia, Sheila]
We were bothered that the SRC2 Pit output on the front wall TV was wandering away from zero - it doesn't seem like it should need to do that. After some looking around, we realized that the SR3 cage servo (which is currently configured as a DC oplev servo) has been running since the SR3 heater test last week. It looks like the SR3 laser must have had a glitch or something (Sheila reminds us that it's been a problem and showing up in Hveto occasionally), and the cage servo was wandering off. The SRC ASC loops were moving in order to compensate for this movement of SR3.
Since we are out of Observe anyway for PEM injections, we turned off the SR3 cage servo. It should remain off unless there is an explicit need to turn it on for an SR3 heater test.
I've updated its nominal state to be CAGE_SERVO_OFF.