Maybe try this, I smoke at 165 for 30 minutes turn up to 350 for 10 more minutes then flip for 10 minutes flip for 5 minutes then flip add cheese 5 more minutes every one loves it
I have done burgers and they turned out okay. Agree that fast and furious is best for burgers. I never put anything other than salt and Pepper (in generous amounts at the last minute on the burger right before I cook it - nothing in the meat patty. My next test is gonna be a smoked batch of burgers at 165 super smoke - for 30 minutes / then rest them while I take the Traeger to 450 with a cast iron pan on grates for the sear to bring to temp. I am not a med rare dude on burgers ... I can go med well and enjoy