I worked with many men that were in their late ages and all of them made growth.So I don't think there's any limit, but the limit we put on ourselves.In truth, the penis doesn't stop growing, or rather adopting new sizes until your body decides to stop completely, when you are dead or no additional resources left for it to use. You be surprised how many 70+ year old men are still doing PE to growth just a bit more. I know two 70+ years old male who are still having intense sex with young ladies in their 30s to 50s with erectiona of a 30 years old vigor.
This is very true.We limit ourselves in so many ways Because we have fear or anxiety that we may not make it. People need to set their goal high and shoot for smaller goals.All along the way. I would invest at least two years into this to get to where you wanna be in most cases.The limit we put on ourselves is the biggest problem of mankind. The mind is very powerful. We must learn to feed our minds only positive thoughts.