After 18 months of IR I finally found termites with it. As I don’t do termite inspections due to the state licensing here in Texas it worked out well that my termite inspector was coming out to the inspection too. I showed him the area and he found the proof. (not sure if they will show on the picture - they are tiny after all - but he found live termites.
Cannot really explain why the IR anomalies struck me as they did, but I knew as soon as I saw them for some reason. Slight elevation in moisture when checked. Crappy differential because of weather this time of year and fact that gas was off so I couldn’t run the heat to help the delta T. Would like to figure out a way to know for sure about this short of having the pest guy come out for occassions when he is not scheduled. Would hate to be recommending him when he wasn’t there and being wrong. Will have to give it more thought.