Jim Rich and Hugh have been working on the ITMX ISI, and found a sign flip. Here are plots of the sus witness sensors (L2WIT) and OpLevs:

• early this morning (brown traces) when we had 750mHz blends on all stage 1 DOFs and could not include any trilliums in the blends without tripping.
• the last half hour or so, (blue traces) with stage 1 blends Tcrappy on all DOFs, stage 2 100mHz on X and Y, 250 Hz on all other DOFs. 

Modified instructions for turning on ITMX ISI after a trip:

• set all blends to 75omHz. 
• make sure T240 WD is disabled by setting the treshold to be large (later you will need to reset this)
• isolate stage 1 level 3
• isolate stage 2 level 3
• change all stage 1 blends to Tcrapy
• change all stage 2 blends to Tcrapy

Of course this mght change, especially the stage 2 blends might work with a different set of blends.