I've known two guys with enormous balls, and both of them went bald in their late 20s. I've read that guys who lose their hair tend to have high levels of testosterone. Nothing scientific about this, but I do wonder whether the guys with the really big nuts might suffer greater hair loss. My tanks are larger than average but not huge, and my hair's doing fine into my late 60s.
Incidentally, I've not noticed that really big balls seems to go with having a big dick. Plenty of the big-dicked guys I've enjoyed being with have had medium to small balls.
Pecker Checker