Well... you were so non-specific that you left it way open. By not answering my question, you are still leaving it open. Which is it, potency or frequency?
That characteristic seems to have something to do with sperm!
AH..... another untouchable subject. It is highly possible that rapists have a higher sperm count, and more determined sperm, than men who go to work all day and sit around eating donuts.
Wonder what kind of hell a politician would go through if he or she made that kind of statement?
The whole topic can get just totally out of hand.
Except for the groups I mentioned to you, most humans have, at best, access to less than suitable sperm!
Big advantage though is a Sa'ami can withstand 6 hours of stasis in freezing cold water and the rest of the world is limited to a good 20 minutes.
You gotta' to expect some differences!