My last two cooks turned out great - the ribs i did last weekend were delicious but what i noticed is my smoker temps at the lid did not come down under 275. The whole packer i did about a month ago my smoker would not drop below 325. I had my bottom vents barely open and considered closing them completely for both cooks. I did not use an overly large amount of kingsford - a little more for the brisket than the ribs. I filled the water pan with hot water - should i have used cold water instead? In 3 years of smoking with the wsm my temps always hover between 235-250 never spiking over the 250 at all in 3 years. I never thought about checking the thermo in the lid - maybe its time for a new one?