I'm using the same filters for ITMX pit as ETM pit, here are spectra showing the performance.  In the red traces both Pit and Yaw damping are on, in the blue traces only Yaw damping is on.

The second screen shot shows the Coil driver outputs, the dashed lines are with only Yaw damping on, the solid lines are with both PIT and Yaw damping on.  I will leave all four OpLev admping loops running for now, ITMX+ETMX PIT+Yaw.