>>76453882 (OP)The ideas Mentzer inherited from Arthur Jones were quite good. Intensity generally being much more important than volume, using of machines to minimize technical requirements while maximizing group, and not trying to throw around as much weight as possible, instead slowing down a little bit to make sure you're actually training the muscle you want to grow.
The issue with Mike and later nautilus is:
Much of the perspective of nautilus started to be oriented more towards genpop which doesn't need to maximize growth. They just want to look toned on the beach while not spending too much time in the gym. In which case they really don't need a lot of work. Just enough to get the relatively little results they want and to maintain it. There was more money in getting genpop to get a gym membership and workout a few times per week than there was to appeal to hardcore bodybuilders anyways. Jones was a very smart businessman.
Mike developed strange beliefs that favored minimalism and tried to apply the nautilus genpop stuff to hardcore bodybuilding. Mike also took the 1-2 weeks off that other lifters and himself had cited as a general prescription rather than the occasional thing after a long training block.
During Mike's actual competition training, though he never did high volume like the high volume advocates would claim or a known liar like Columbu stated in spite of the criticism someone like Arnold had about Mike being that "he didn't do enough volume." Mike probably maximized his potential on his routine, he just didn't have the genetics of Arnold or someone like Lee Haney. Mike's actually training was something more like 6-10 sets per body part per week, about 45 minutes per session. Anyone who trained with him in the mid-to-late 70's all cited him either doing his two-way split twice per week or the nautilus three day per week full body routine modeled after the Colorado routine.