RB's Intensive Kundalini Raising

[S7]

Don't know if this has already been discussed here, but in an Art Bell interview I heard RB talk about spending an intensive three days raising kundalini successfully. Has he ever discussed what methods he used to do this? I know he says it is not safe, but I am curious to know what all he did within those three days. I also think I heard him mention that he plans to write a book about Kundalini at some point.