I think it’s more like:
2 runs of KB and 1 run of Alchemist is minimum for [INITIALLY MORE PREDICTABLE AND INITIALLY MORE EASILY IDENTIFIABLE] benefits of AEON…
Kind of like how climbing to the top of a treeless hill on a windy day will be a predictably good way to get started with your kite-flying.
But if you’re resourceful, pay attention to guidelines, and learn (or are led) to spot good conditions, you can actually get your kite flying from a ton of other places too.
And as for the FULL benefits, I think we’re squarely in theoretical territory with that. I think it’ll depend on a whole bunch of other factors. Also, full benefits are a bit like Pokemon evolutionary pathways. They don’t end up at identical outcomes.