kettle souring

Hello. What are the risks of souring at temp (95 to 120) with lacto for two days in sealed kettle, but then pause the heating for a day, maybe down to 60's or so (kettle would be outside covered with blanket) and then resume for the third day? Thinking about leaving town for a day, so not sure...

I'm about to attempt my first Kettle sour brew this coming weekend, and had a few questions. 1) Has anyone attempted (and succeeded) a Kettle Souring using a Grainfather (or similar) system? Seeing that the Grainfather can keep a steady temp indefinitely, it shouldn't be an issue to just leave...

So I just finished a kettle sour I started four days ago. When I started I had 7.5 gal. OG 1.044. I ended with 6 gal. OG 1.027. My question is this: Why is my OG so low after my boil today? If I am an idiot ,and there is an obvious answer, then I need it. This is only my second time making...