Hello from Saskatchewan Canada. I am quite new to smoking. I have a Dynaglo 36 inch dual door liquid propane vertical smoker. I have some trouble keeping the temperature stable and it often goes too high.
I'm in the same boat. I'm finding cracking the door helps at times, especially for a dry out cycle. Just gotta play with vents and burner controls to get what you're after. It's all about experimentation. Luckily, there is no absolute to smoking, just guidelines.