"and correct me if I'm wrong" I don't know whether you're right or wrong because I wasn't with you when you visited all these airfields, but I haven't noticed any skew from a normal distribution in the way you suggest.
What I have noticed is that there are far fewer female pilots than male pilots, but that seems to be changing in the same way that the number of lady Air Traffic Controllers seems to be increasing. While not wishing to upset anyone, I do believe that the female voice is more intelligible in a noisy environment such as a light aircraft.
By the way, wouldn't a "plumb" in your mouth tend to give you lead poisoning?