I am 29. I started Penis Enlargement'ing when I was 19-20, but that was back when all was known about pe was jelqing, and stretching, and no real routines. I got this black booklet in the mail. I think it was called the "KAS Project" It wasn't until I was 23-24 that I had any kind of serious routine. I venture to say I have gained about 2 inches total from pe length wise, and almost an inch girth wise.