Last week with Seb here, I started playing with sensor correction on the ETM ISI's. ETMX turned on and did good things around a half hz, as it should. ETMY so far has not done as well, so I'm still investigating there. This morning I looked at the ITM's, just seeing if filters were installed. ITMX seems to have had it's filters modified, so I used foton and gedit to fix the IIR and FIR filters. That did not happen as transparently as I would have hoped, so, my apologies to the ISC crew. After talking to Kiwamu and Sheila, they let me try to turn sensor correction on on ITMX this morning. Looks like it's working so far, only on Z ,see attached plots. The upper right plot on each picture shows most of the action, but there does seem to be a reduction in the low frequency motion on RX and RY as well, that is probably just an artifact of only having 20 minutes of data. We can't use sensor correction on other DOF's, as the blends are too low.