I read it too, about 3 months ago, and started doing the stem exercises. I found them to be enormously powerful, when Branden says they're a shot of adrenaline to the psyche, he isn't kidding. The 10 or so days I did them were fantastic, followed by a monumental fall. (self-attack, I think) I'm still screwing up the courage to start again.
If you give it a shot, tell me how it goes. :)
Tyrel