Thanks for this Wade.
So the only ventilation at the bottom near the coals is a small door latch on the side - from what you describe, probably not ideal.
I did use Weber charcoal st the start, so not sure that was the problem. That’s interesting about the wood chips - I’d read that smoking them is better but, as you say, could have been another reason for the struggling temperature. Not sure what the minion method is..?
ill try leaving out the water - is just read that it helps keep the meat moist?
not able to get a decent pic at the mo due to the lack of light but will post one tomorrow!