Following what I did on BS (https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=13988), I configured the ITMX-ISI and ITMY-ISI in the same configuration:

ST1: TSheila everywhere, except on Z (T750mHz). A T750mHz blend helps limiting the pick up in RZ.

ST2: T750mHz everywhere. Provides isolation above 1Hz without reinjecting noise at low frequency.

On ITMY, we see some good improvement in YAW without degrading PITCH too much.

On ITMX, the degradation in PITCH is a little worse: we might want to turn on some optical lever damping loops to kill this 0.55Hz peak.