When I learned the Bulgarian secrets, my jaw dropped. Simply put, the Bulgarian trainers have thrown out practically everything we and the Russians believe it. Literally hundreds of experiments were done over several years to determine what worked best and what didn't. They put their best scientists to work determining how the body builds strength, power, and large muscles. For example--the old Soviet periodization concepts are considerably behind the times. The Bulgarians and Russians have tried, tested and tossed them out. Yet, people in the U.S. are only now discovering them. Periodization is old news!