My vote is for the maze smoker, though I bet you'd be happy with either. I've used the can and soldering pen method, expand metal that worked like the maze smoker, and both methods worked well. The expanded metal worked way better though in my opinion, I just ordered the maze smoker too.
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*A Texan transplant*
UDS | Blue Weber Performer Platinum | Chargriller Akorn | 22.5 Weber OTG | WSJ Gold | Mini WSM | Maverick ET-73 | Blue Thermapen | Maverick PT-100 | Master Forge gasser(charcoal chimney starter)