maximum lean muscle mass gain steroids

Came across this model: Lyle McDonald's Natural Lean Muscle Mass Gain Model Years Training: Muscle Gain: 1 year 20-25 pounds (2 pounds per month) 2 years 10-12 pounds (1 pound per month) 3 years 5-6 pounds (.5 pound per month) 4 years 2-3 pounds (not worth calculating) with other similar...