The older models,like mine, you had to change the settings manually if you wanted a low heat or high heat cooking.
Shelf above the indirect side is about 25* higher on right and about 50* higher on left compared to set temp just FYI.
I like to smoke the briskets at a little higher temp than you, say 250-60ish. Some of the guys on the comp trail that uses it for briskets will actually smoke at a higher temp.
It was my rib smoker, 275* was what I smoked them at.