Let me add to this, keeping in mind the theme ''Expansion effects of clamping''.
I have noticed, that when I do any intense girth work, especially if its pumping, for example with the bathmate, that I maintain the expanded state well into the nextday.
This was something that did not happen in the past, but has come since I did clamping, and did it allot.
So, what it could mean [cant prove unless I was medically examined] is clamping not just enlarges the spaces inside the corpus cavernosa, helping with increased blood flow and penile mass, but must do something through this growth that increases temporary expansion to the penis in the future ... its like its enabled the cells to stay full for much longer then before.