1.yes you can calibrate temperature by adjusting parameter of Pb.
2.The DOG can MEMORY. Before you open the cover of your smoker, simply turn off the power of DOG. When you turn on the power. the DOG will continue the program instead of starting over again.
I do not use auto-detection of cover opening because there is a delay of temperature dropping when opening cover. It is more reliable by turning off and on of power switch