Fat cap left on the flat has always cooked dry for me, but your smoker may run cooler than mine.

Does it count if you do it in your car in the parking lot? Because that's my move. I hit the drive thru for a small cold brew, park in the shade, set a timer for 15 and just close my eyes. Two of those a week and my afternoons are way less of a slog. Last Tuesday I skipped it and by 2pm I was reading the same email four times. Sitting still is probably half the trick, but the coffee sure doesn't hurt.

The customer always swears the last guy was a pro, right up until you open the can. Did you ever find out what the bar fridge circuit actually was, or was that still a mystery when you left?