When I would call for our weekly check in I initially connected our series to the mag workout articles because I was doing something similar with him, but for video.
He said it was all ghost written and he had nothing to do with it other than being the subject of the pictures and providing a snippet quote or two.
He didn't tell me anything of detail, like it was A and not B, but he did essentially say that it was always this way and the magazine workouts were fake; had to be full of Weider Principles, etc...
I did the "Olympia Bound" series with him for American Muscle.
It makes me cringe hearing him speaking my words now, but I was only 20 at the time