The Limitations of PE ("Ceilings")

I’d like to know what are the limitations of PE, how much can you actually gain before it is extremely hard / impossible to gain anymore.
The amount of length an average PE’er can gain as I have understood it from various places is around 2 inches. Can some already max out at 1, and some gain 3-4? And what about girth, what would be an average maxed out gain on girth?

Basically the idea here is to see what sort of ideas you guys have about how much you can actually gain before you no longer can, what’s the average, what’s the least you can gain if you’re an unlucky one that doesn’t gain that much, what about the most luckiest, what’s their max?

Any answers, fact or guess based would be appreciated.

It’s hard to tell. There are so few people who put in the time to continue PE after a certain point. I think the limitations might to some extent be down to decreasing returns and unwillingness to put in time. I’m not sure it’s true that there’s a hard limit, certainly not one that couldn’t be dealt with by a decon break or an increased routine. There are reports of people plateauing and then getting over the plateau, it’s fairly likely that many reach a plateau and stop there.

So basically the bodybuilding analogy works with this matter as well? Most people can go to the gym and gain muscle mass and after a certain point it becomes harder so they slow down or stop (but so far there hasn’t been any absolute max point, as we can see at the best of the best they just keep on gaining size year after year)

But as far as I understand PE is about increasing the size of the cells in your penis (hypertrophy) rather than the amount (hyperplasia) and you’d think that it does have some sort of a limit unless you use like growth hormones or something.