This guy lost immediate credibility when he included Cowboy in his list. Worst lump charcoal on the market (IMHO). It's made from scrap lumber, so you don't have any idea what wood it is (or if it's been treated!), burns up in a flash and produces a lot of ash. If you want a better source of info about charcoal (including KK cocochar), go read Naked Whiz.
The Lump Charcoal Database -- Naked Whiz Charcoal Ceramic Cooking