[Ididntdothis]

You just keep gaining?

[brandonmenc]

Gains are asymptotic so the returns are diminishing, but most people - i.e., everyone not competing in bodybuilding - will not hit their "natty ceiling" before they hit old age.

Just ride the slow and steady gain train until you actually need medically prescribed TRT.

[Gigablah]

You plateau, but well before the stage where steroids are needed to progress.