To start thanks to everyone on this site, lots of great info. I did the mailbox mod to my smoker, mounted right to the smoker, chip tray still in it.
The vent whole was a little small
But the Mac & Cheese was fantastic. I have to finish typing the recipe
I just opened the vent whole will be trying it on Pulled Pork, and Wings for the 4th of July.
As you can see I used the key hole to attached the mail box, enlarged the whole I should have a better draft now. Loosen the 2 top screws on the chip tray slide the box right over them.
My AMNPS burned only half of what I put in it.
Hope this helped someone and I do hope it posted in the right place.