former big juicers profit later on on small doses, for whatever mysterious reasons, but they do.
i think this can go one of two ways.
you hit a point of 'no return' ala ronnie coleman/ kamali/ markus ruhl/ dave palumo even jay cutler now, where the amounts of hormones they are taking only make them look worse, and they cant drop the dose cause they have gone too far past their genetic thresholds to ever look good again.
i think the best bet is to use moderate doses over a long period of time. not big cycles up and down up and down, but steady continual usage over time until you hit a point where your either going to go pro, or are happy with a good physique.
those guys who are happy with the good physique will benefit greatly like you say from running smaller doses than what it took to get them there, and even continue making gains. like you i cant figure it out.
the second group the further they go past ^ that point, the less able they are to have a respectable physique when dropping their dose, let alone look better running the same amounts (or more) it took to get there.
there is
very definitely a law of diminishing returns.