Adjusting the top vs. the bottom vent? What's the reason for adjusting one over the other? in Char-Griller AKORN Kamado / King Griller Posted June 5 Keeperovdaflame. Thanks for posting your thoughts so quickly! We are new to kamado grilling and have not yet experienced being able to shut down a full loaded grill and keep usable charcoal. I think we've only done the full shut down on small amounts and it all burned through. We will have to try it tonight with some sausages! Thanks again for your perspective!