Jim suggested this a while ago, and it looks like he and TJ prepared a guardian state for it, but I've just set the nominal for the SEI_DIFF guardian to be CORNER_CPS_DIFF. This state has all of the vertex CPS DIFF turned on (HAM2-HAM3, HAM4-HAM5, and ITMX-BS-ITMY), but no CPS diff down the long arms.
The microseism isn't quite high enough right now to see lots of low frequency glitches when the system is on including the arms, so I don't have a good on/off plot to show. The microseism is increasing though, so hopefully we'll see throughout the day that the low frequency glitches don't increase.
Offline, we'll continue trying to understand how we can use the CPS diff up at higher frequencies to cover the microseism, as well as how we can have it on the arms without causing extra noise.
Operators: This means that (hopefully) there will not be low frequency glitches even with the CPS diff on with these settings, so there should be no need to turn off CPS diff if the microseism gets high. However, if you find that there are lots of low frequency glitches when the microseism is very high, you could still consider taking the SEI_DIFF guardian to DOWN, which will turn off the whole system and keep it off.
Dripta is keeping an eye on the summary pages, to see if we start seeing the low freq glitches.