This is going to be along post, sorry, but I hope the info helps... I’ve been looking for some extra smoke flavor for a while... Saw the OP a while back and watched the video and did some research. I also watched the video of the JenUwineJerry stick burning heat diffuser and thought it was a good design also... hard choice, but I went ahead and got myself the Heavy D stick burning heat diffuser from SmokeDaddyinc.com last week and fired it up for the first time today. I have a
Pitboss Austin XL which is a Non-PID controller pellet grill... I had some concerns with the possibility of abnormal temp swings because of the extra heat being produced. Its design is a much better heat diffuser then the stock one which is designed for direct flame grilling. I experienced no wild temps swings at all.. Didn’t need to prop/crack the lid at all and temps were within 10* degrees +- all day for a Non PID controller
Pit Boss.. Now for the added smoke flavor... I used Hickory wood chunks and lump charcoals in the “Heavy D”, mostly the Hickory Chunks.. The added wood flavor was great true wood flavor.. I could truly tell the difference because of the size of the chunks and the amount of wood that can be added. The chunks will burn for a couple of hours and then the wood pellet smoke will kick in after the chunks have burned out, but that 2 plus hours of wood smoke is huge. Pellet smoke is nice, but those who miss that “Extra” that only true wood can produce, this is the direction you should go.
PB Austin XL in SoCal and always... Semper Fi