The physique he had at 17 years old can only be gained after a 3 years training regimen when gifted. He is most probably is what we call a half natty. And he is probably using some kind of drug when losing downs at 4% body fat without loosing much muscle fullness. He is definitely a hard worker when it comes to training, but he is on and off some gear. The red flag is not his size, it is is body fat percentage. It is impossible to compete at the Olympia and be a full natty when we have guys crossing from men’s physique to classical physique bodybuilding category. So verdict: a small user. Almost natty, mostly using drug to cut down before a competition.