One man I knew added 105 pounds to his squat in 13 weeks of Smolov and peaked in the mid-600s, drug-free. His gains are not atypical. But it takes its toll. You will be so sore and exhausted that the only "sport" you could practice at the same time is chess. The Smolov is a specialized program for an athlete who does not have any skills to practice outside of the gym. An exception would be an athlete who must gain a lot of muscle mass in the off-season, such as a football lineman.
Find out more about this book:The 4-Hour Body: An Uncommon Guide to Rapid Fat-Loss, Incredible Sex, and Becoming Superhuman