I have for some years the US versions of both works. For ectomorph, body weight allows you to take maximum muscle mass by associating it with a suitable diet. For my part, I weighed 57 kilos for 1m78 to 25 years. After 6 months of gym with a coach, I had taken only 3 kilos. I clearly tiring to always perform the same type of exercise I started the method The fan who gets the exercises in this book. Pumps, tractions ... I took 20 kilos in 5 months ... I wanted to cast iron but I'm still not as jaded .. reviews on sites like Super selling a physical nickname coaching on the internet, of course ridiculous. These forums are disguised sales sites. Try Freeletics, Lafay, body of a prisoner and you will have a real outcome that will not penalize your tendons and ligaments like that may be the case with the cast.