This is strange. My friends fathers (except of 1, or maybe 2) are all more thin haired /bald than my father. All their sons are the perfect nw1, i am like the only nw2 with signs of slight receeding and my dad is somehwere like a nw3. We are still young, me and my friends are between 22-28. So I dunno if they beaten the odds or their baldness kicks in later etc. But it's strange that 99% of my friends are the perfect nw1 when most of their fathers are quite bald/thin haired.