I have not heard of this diet, haven't chatted with Layne in a while, but I used to follow a diet Bill Phillips wrote about in one of his books call anabolic burst cycling of diet and exercise. Essentially bulk for 2 weeks then cut for 2 weeks, I had amazing results, people were constantly asking what juice I was taking. This diet sounds similar but probably a little easier as changing the diet every 2 weeks worse really hard dealing with the mental change, though the results were hard to beat.
I will have to check Laynes diet out. Oh yeah I didn't really notice DCP until the end of the second week but everyone is different.