I used lump charcoal (Royal Oak USA) for the first time today on a 8 lb Boston butt and 20 lbs of spare ribs. I have always used Kingsford in the past. Wow - the results were pretty amazing with the lump. I always had trouble getting the temperatures high enough with the Kingsford. With the lump, I had the dampers almost completely shut to keep it from getting too hot. Great heat, great taste, great results. I think I will be burning more lump in the future!