Pull it. That should be plenty of smoke.
If you have dust left, use a spoon or a stick to scrape the burning part away from the remaining good dust and re-bag it.
Cool, make a mental note of how much burned for how long. Now that you know how the AMNS burns, you can estimate how much sawdust you'll need for future smoke and how much a full tay of dusk will go.
I have the dust model. With the help of the forum and Todd I got it figured out.
If you plan on "Hot " smoking you may want to get one of Todds Pellet smokers. It was found that the dust smokers burn up the dust in a hurry when hot smoking, thus prompting Todd to develop the pellet smoker for Hot smokes. One thing about Todd.......When he finds there's a problem.........He FIXES It!!!!!