I have a Visions Kamado and so far it maintains very accurate temps with the vent adjustments. It will hold steady at 225 degrees all day. I am using oak slabs cut with my sawzall from about a 6" diameter branch. Just recently bought a Oregon Scientific remote thermometer and love it. Bass Pro Shops $ 39.99 That's as techie as I can get.
Backyard Disasters are my specialty.
"Tushka" The Black Warrior 24 x 50 offset by TuscaloosaQ, "Libby the Lion" L5000 gasser, and "Vanessa" my Vision Kamado Pro III & "Ruprecht" my Weber Gold OTG
Member KCBS, FBA
Pitmaster at "Sultans of Sting" BBQ Team it's a French thing!