I too would find it hard to believe ronnie was natural when he got his pro card. A reputable person in bodybuilding still may never know when someone really started. I'm not saying he is lieing, im saying his information still may be inaccurate (ronnie may not be telling people close to him the truth on his use because he wants to be claim he was natural when he got it).

My theory on the matter is he was using but at much lower doses than he is now. Any pro has to have great genetics but at his size and muscle development, i would find it hard to believe he was natural