I have two 9lbs going at the moment. Went on at 9pm last night and 22.5 WSM was up to temp within two hours. Even got up to 300 at one point as I dozed off. Cooker temps have been riding at 250-230 until recently I've bumped it back to 275. I can't get either to probe above 189*. Both actully sitting at 189*. They probe like butter though. Should I just pull them and wrap tightly or keep them on? Thanks in advance for the help. Tried to provide enough info.