as far as I know , Markus juiced at the beginning of his career ,early 90"s......hes been natural for over 15 years but then again I don't live with the guy 24/7 so I can confirm he is 100% natural.. ..Hey man if u think 3DMJ are the way to go and train go with that , the choice is yours...im just telling you what I am doing and what its working for me.. if u think working out daily for an hr with multiple sets and reps might work for you better..go ahead an give it a try. I wont..lol