There are around 7 billion people on the planet right now. What % of those people go to the gym? What % of those gym-goers train like a bodybuilder? What % eat like a bodybuilder? What % of those who eat and train like a bodybuilder have great genetics? What % of that group have taken steroids? What % got legit steroids and knew what they were doing? What % of that final group did all of this consistently for 5-25 years?
We don't know shit about what other people can do or how they would look if they took X, Y or Z drugs is whatever dosages bc the % of the human population who have ever consistently eaten enough food, trained hard enough, and took enough legit drugs to get to 270-300 pounds of muscle is a very, very small %. We do know that it can be done though, so if that's what you care about then go do it. If it is your life goal, I'm sure anyone can get there if they do whatever it takes. But most people aren't crazy enough to do "whatever it takes" and some people don't have to do whatever it takes. Most people couldn't do whatever it takes even if they tried.
There is a direct correlation between muscle growth (unlocking gorilla like genetic potential) and copious dosing of the supplement Hot Stuff. That's the secret of the pros gents.
Real men deadlift.
Lets say I decide to push for my pro card or whatever in the next few years--I use the drugs required, the doses required, the food, all that. I have the perfect set up for a body builder. In 15 years will I still grow on say 3g of gear and 5iu of GH? Maybe not, but if I add something, I can still gain. Will it be pretty? No. will I have a guy like Palumbo's? Probably. But my body would continue to grow.
At a certain point (Which a guy like Phil is at), its a fine balance between making small gains, and maintaining a pleasing look. Phil COULD weigh 300lbs if he wanted to with the drugs in his arsenal, but he doesn't. It's not because he can't, it's because he would probably look like shit.
So in short:
-Yes, you could still grow.
-There may be no need to, but that doesn't mean your body just begins to reject what you do to it.