Me thinks the MB mod. helps to condense the creosote BEFORE it gets to the food..... I think that is a bonus for great flavored food.....
Now you know everything I know.....
That's great that it keeps it in there. It may be causing creosote & holding it in----Maybe because of the temp differences of an uninsulated Mailbox??? Just guessing here.
My MES 40 is 4 years old, and I couldn't get that much black if I scraped my whole interior.
Oh---OK---The pic makes it look like a lot more----Sorry about that.
That's cool if it really is keeping it out of the smoker, or at least much of it!!!!