Walkthrough done. Went out of observing, checked VEAs, all out buildings, except mids, and inspected dewar exhausts. No issues found.

The one issue I did find, I happened across an alog where Niko found (and accepted) SDF diffs on all the BSCs, where the digital gains were engaged on the St1 L4Cs, which puts the L4Cs in a less sensitive, low analog gain state, so I used the opportunity to go out of commissioning and fix it. I didn't see Niko's log because he only tagged it for sus, so I didn't get an email and I haven't been following the logbook very closely.

This was probably caused by Corey pushing the big red button for the flurry of earthquakes a few days ago. One of the steps that script does is turn all the analog gains for the seismometers to low. Corey said he didn't think the EQ script ended up doing anything (can't test that now, and I think he said a bunch of platforms tripped anyway from the eq), and he probably didn't use the green Recover EQ button, which returns everything to it's nominal state. Probably not a huge issue for the IFO, but also easy to fix. I thought I had actually removed the gain switch from the EQ script, but maybe didn't check it in to the svn? That I can fix right now.