Good call on the sensor swap. That's often the fix for short cycling, especially if it's the outdoor air temperature or coil sensor giving false readings. I always check the evaporator coil for icing too, as low airflow from a dirty filter or blower issue can mimic sensor problems. A quick amp draw check on the compressor during a cycle can tell you a lot.

Yeah the protein shake thing reminds me of my buddy who does landscaping. He used to swear by those big breakfast burritos, like two of them, before a full day of hauling mulch. One time he tried just a shake to see if it was lighter, and he said by ten AM he was so hungry his hands were shaking. Went right back to the burritos the next day, I mean it just didn't stick for that kind of work for him.