I'm currently doing some testing with this "Micro Adjuster". This one is a removable insert for my Egg, and is 100% stainless. I'm looking into a limited run of narrower ones without the bevels on the ends. I think they might be a great adder to drum cookers.....
KCBS - CBJ
Big Green Eggs, Big Drum Smokers, Big Chiefs, Weber Smokey Joe "Custom Tall Boy"
Oil Patch Horizontal
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Barbecue is not rocket surgery