This is exactly how some guys in gyms used to consume anabolic steroids, I'm talking about the practice around the 90s, for them this was just a dark pattern in sports (heavy weight lifting). Some used to train several months a year consuming, then stopping, and after a while (could be months to a year or more), they'd be returning to competition.

the street theory, quite supported by old consumers and ex-competitors, was that, ok the "super-size" could be gone after some months, but the strenght increase would not. So you've got - and you'd be able - to train really hard in those months, consuming steroids, supplements, controlling diet, etc.