In my opinion it is a load of happy horseshit. It is everything plus 2 kitchen sinks. Bill Pearl, although you'd never guess it from reading that routine, came from the era when bodybuilders were actually as strong as they looked. Although what he did as time progressed is anybody's guess, he had a world class physique and world class strength in the 50's, before anabolics were widely used. I don't want to post something really stupid, as I cannot remember off hand the dates, but I want to say that nobody in the US really used steroids until the very late-50's when Dr. Zeigler was working with Olympic Lifters in Maryland. But anyway, it is safe to say Pearl knows the benefits of squats, pulls, and presses, and that routine can be chalked up to a sales pitch. He did a lot of stuff focusing on heavy basics, so I was a little surprised to see all that crap. You'd be better served getting strong squats, pulls, and presses.