I say run another similar cook test and see if you get the same results. I had the opposite happen at a competition where I put in 2 9lb butts at night 10:30pm and when I woke up at 5am about 6.5hrs later they were already at 190 when normally they are around 160. This is also cooking at 225.
Shirley Fabrication Offset Awesome Pit
Backwoods G2 Party & G2 Chubby
Big Green Egg XL
Weber 18.5 Kettle
"Tenacious Q" Competition Team
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