This morning at 2:30 am pacific time ITMY controls were turned off to check that the sawtooth seen on the OpLev yaw is not somehow cause by the ISI.  The sawtooth was there all night, and not seen in the stage 2 Rz sensors, screen shot attached.

This is as expected, since if this were real motion of the suspension we would not be able to lock. 

The ISI tripped this morning and tripped again when I was trying to bring it back, with the guardian complaining about smoe filter settings not as expected. 

Now it is fully isolated.