NOTE - the 84 burns MUCH differently than the 108. I was able to open the 84 all up and in 10 minutes the cooker was 450. the 108 - not a chance.
the baffle is a toughy - turn that down and you get a bad burn - too much smoke.
Dutch, I am almost thinking it needs a baffle to obstruct the flow - and keep the heat on the end. the 84 has a small area between the baffle and the bottom of the barrel - the 108 is GINORMOUS.
So i was thinking (and no, I don't know the engineering behind it), put in a few inch baffle at a 45 degree angle down at the end to divert the heat and keep it at that end of the rig, then up and out.
I don't know, I get pretty frustrated with it - Ben also must have a new welder guy - many bad welds have broken and I have had to have fixed.
overall happy, but not without a dozen bs items.