I did an awesome smoke this weekend (not many pics so I guess it wasn't that awesome!). I tried doing the clay pot base mod and for the most part I was happy with it. However I noticed something strange. Most of the time the WSM therm and my ET-73 were dead on. When I started losing temp on both and we adjusted the vents to allow more air, the grate level temp would skyrocket (300°+) which took a long time to even out. What was strange was the lid therm (factory) stayed lower than 200°. Once things were back to normal, both therms would be the same again. I'm going to run my 2 WSMs side by side and do some testing with water pan vs. the clay pot and see if I get the same thing. Anyone else noticed this?