What NW level am I? (with pic)

[akai]

Was going to start a thread on this. Have a friend with normal hair but his brother who is 7 years older is losing his fast. He's been trying to find out if that will increase his chances? I'm assuming it's pretty much a crapshoot? I had thinning on my crown yet my father at 62, although grey, has a perfect hair line and thick curly hair. It's basically the same head of hair he had at 15. It's ridiculous. lol.