Originally Posted by Bludawg
Your making life much harder than it needs to be. Pick one!! Calibrate it!! Monitor on the grate for the cook temp. The temp in that dome is useless! It's BBQ> a relaxing beer drinking hobby have fun with it. To be honest I would forgo the thermo altogether. When it feels hot and the smoke is Sweet Blue it's time to cook and its done when it s done.
Bludawg hit it on the head about picking one and relax and drink a beer. It is cooking, it shouldn't be stressful unless you are cooking for a huge catering gig :p
As for forgetting the thermo all together, if you have time definitely do this. When I dont care what time the bbq is coming off the smoker and don't have anywhere to be, I dont even place a thermometer. But whenver I do want the bbq done by a certain time and need to be able to guestimate cook times by pit temp and mass of meat.