I found the documentary in a link on another forum on Youku--seems like a Japanese version of Youtube by the looks of it. It's all in Japanese, but you get the idea.
Hw does @ least 10 steps w/ the shell after cutting--including adding some type of grey powder toward the end--maybe graphite? This is where I'd like to be able to translate, as they seem to describe what he adds, compound-wise @ each step. Anyone here speak Japanese? :D