No top-tier bodybuilding comeback has been successful (don't even mention Arnold).
When an athlete (yeah, yeah, yeah) is cruising at a high level, to just step off the gas for even a year is the death knell. Especially so if he's over 35. The machine's gotta be kept buzzing.
Unfortunately, bodybuilding requires drugs, and lots of them, so the practicality of running the gear for prolonged periods of time becomes very unwise.
Still, a gassed lifter can maintain a hardcore weight-training regime while off, but really, how many do?
Levrone responds amazingly to shit. However, with the passing of so many years and his physique deteriorations having been painfully obvious then, it's a certainty he'd now appear on stage but a speck of what he once was.
If he's serious ... Bad idea, Kevin.