We turned on both ISS loops today.
Here is an in-loop characterization of the south RIN with and without the ISS.
Here is the beat measurement from Thursday, with the ISS loops on and the table floated.
I've fudged the photothermal noise slightly by just using twice the south cavity's PT measurement, rather than south and north. I need to take RIN data from north, and then I can add south + north PT.