If you would allow a mild use of low yielding BB'ing chemicals (D-bol mainly), as used in the '60's, than the majority of those guys back than should do well in any present or past drug reduced Mr O. Most all the Pro's now days are super jacked, starting from their teen years. That is about the only advantage they may have over the old timers from the '60's. Though maybe quads where not up to par as compared to today. Wonder what a Don Holworth could do today super jacked?