I think the "Basic Drum" is still the best foundation to start from. Everything else is bling and window dressing.
With that said....has anyone tried using a medium size stainless colander (12"-14") as a diffuser? Just wonder if the bowl shape would help diffuse some of the heat away from the center and the holes still lets enough through to help even out the temps. Also the holes would let all the dripping grease make it down to the coals.
R2-BQ UDS - GOSM BB - CL 22.5 OTG Performer - Smokey Joe - Kenmore Elite SS Grill - Super Fast Blue Thermapen