I use both lump & briquette in it. I like the lump for the minimal amount of ash but it won't last long enough for a pork butt w/o reloading. Actually I don't think the briquettes will last long enough in the bowl either. I didn't prop up the WSJ grate but I really don't recall the smokes with the "swiss cheese" bowl because I quickly built an expanded metal basket. That works WAY much better. With a full load of briquettes in the basket I can easily get a 12 hour burn @ 250-275F. It works perfect for 2 butts. I can do 4 butts on it but I have to stand them on edge and use a couple Bamboo Shish Kabob skewers through the top corners to prop them up. They sorta keep each other from falling over. Cheers!!!
If Homebrew & BBQ aren't the answer, then you're askin' the wrong questions... Cheers!!!