What about the mantra where an appropriate dose is good, but exceeding it is just wasteful? That has been said a lot around here. You either have it or you don't. Most pros also obtain their size rather quickly. "You know if you can turn pro after 2 years" is another one.
^This, absolutely this.
YouTube and the net are full of examples of attempted "Mutation" through shockingly excessive doses and various "magical" combinations that worked out only in the deluded mind of the "mutant" and of course the encouraging words of the dealer / guru becoming enriched by said delusion......
If you have "it" - you,
and everyone around you will know almost immediately. You won't spend any energy 'convincing' others of your potential, as it will be self evident.
The idea that with insanely high doses, even sub-par genetics will respond like the pros, is simply untrue.
Much money is made off those who cannot understand or accept this.