100% sure there is no correlation between height and penis size.
Was drunk in college one night with eight friends.. five guys, three girls.
The girls challenged us to drop our pants.
We didn't care...as we were drinking.
Shocking.
Of the five guys, most of us were able to get rock hard.
It was clear, the height/size rumor is NOT true.
I'm 6'3" and 7 inches hard.
My 5'6" friend was a solid 8.5. Absolutely monstrous cock (for the record, he has Size 8 feet--tiny).
My friend who was 6'5" had the smallest cock in the room at just under 6 fully erect. And, he has size 14 feet. The girls were shocked.
The other two guys were in the middle (one couldn't get hard, but looked average)
So...anecdotally, there's proof .. tall does NOT equal well endowed.