Found some interesting ideas about
baffles that might be used in a hammerhead design. Hell, might even work in a tall UDS or one with firebox access on the side...
Also a good
page about firebox design & theory (for offsets)...
Here's a link to the book
Meat Smoking And Smokehouse Design. (May the authors see this use as promotion of their copyrighted material and not a violation – happy to remove the images though if they prefer...)