I personally used the Optimum Anabolics Program for 7 weeks. It has to be the most thoroughly thoughtout system that I have ever used. Everything is formatted for you, the exercises, the reps, the sets, the rest durations and the diet. Every workout has a printable table so you can monitor your progress and record the weights you are lifting. Jeff also includes accurate ways of determining your lean bodyfat percentages. The workouts are awesome and at times very taxing even to an experienced lifter like myself. But the results are awesome, at first I was skeptical of the claims, but after 7 short weeks of the program I am a big believer. In just the short 7 weeks my bodyfat percentage dropped from 23% to 20% with a subsequent increase in lean bodyweight of 3lbs (muscle), my definition improved leaps and bounds. Make no mistake this is the real thing GUARANTEED!!!!!!!!