This guy really believes that?
you cant put on muscle mass without strength gains. The whole 6-12 rep range will not yield strength gains is just not true. The whole base of my original strength program consisted of 4x6@ a standard weight, increasing the next week if all sets were clean. I have benched 500lbs raw, and benched near 700lbs in a single ply shirt. To paraphrase Chad Aichs "I dont want to learn theory from some guy who cant bench 200lbs when I am trying to bench 900lbs"