Y'all, I was so excited today to be able to cook a butt in The Assassin (see video). As usual, I like to use 2 thermometers to monitor grill temps - one on either side of the butt. Well, today I got 'em situated like I wanted 'em and got 'em pretty well balanced. At times they were reading identical temps, but mostly separated by a few degrees. After a couple of hours I decided to move one of the therms. Wasn't too long before the temp on that side started to sink. I opened a vent and adjusted the damper...check the charcoal and waited for the temp to rise. It wouldn't move. By then, the difference between the two was 30 degrees and I was having a spell. I probably worked with that grill for 45 minutes or more...even changed positions of the therms - nothing helped.
FINALLY!!!! It dawned on me! The probe had gone sour. I switched plugs to double check and sure enuff, it was as suspected.
What a relief!
B T W, the cook time was extended by 90 minutes or so because of all the door openings that resulted, but the butt turned out better than most I've done. Most everyone here has already seen my butt, so I didn't feel obligated to post a picture.
We now return to our regularly scheduled posts.