And I found this mod, not sure it will help
http://forum.bigsteelkeg.com/index.php?topic=9775.0I have now done almost all mods. to this thing. I sealed the top and bottom dampers with high-temp. silicone. Added a more robust spring and washer to better seal the daisy wheel damper. My most recent mod. was an attempt to "portion control" the lump. It was successful too! I bought a galvanized steel duct reducer for a hot air furnace system at Home Depot for about $8.00. I'll post a pic later. I then used about 4 handfuls of lump with a few paper towels soaked in canola oil to light it. This worked and it was a windy day too. Cooked my first spatchcocked chicken last night. Simple rub of Montreal Chicken seasoning. Took about an hour. Basically just followed the recipe from Naked Whiz. It was outstanding...the best chicken I ever cooked anyway.