I was just reading this program and while it sounds excellent, I want to clarify something that was expressed in the article.
At one point, Christian mentions that on this program it is possible to (paraphrasing here) "gain muscle and lose fat" while in this program. Now, I've always been taught that a calorie surplus = absolute necessity to gain muscle, but also promotes a certain amount of fat gain. Conversely, a calorie shortage = burning fat.
How then, is it possible to do both at the same time?