7 Heads or 8 Heads rule?

So looking at an average human figure you'll see that the body is 7x the length of the head! that is to say take the length of the head, multiply it by 7 and that's how high an average person should be!

However the 8 head rule says the body should be divided into 8 heads! does that mean that the body suddenly becomes a lot taller? well i thought so at first but no! The 8 head rule suggests that the head becomes smaller and that the body should become elongated or emphazised accordingly to produce a more 'ideal' figure!

Look very closely at the picture below! both men are the same hight but the man on the left fits into 7 heads and the man on the right into 8! Also see that the man on the right has a slightly smaller head and a more slim/graceful appearance

The 8 head aproach i have found allows for easier body division. The divisions are:

1 - The Head

2 - From Head to Chest

3 - From Chest to Hips (this is also where the elbows should come to)

4 - From Hips to Crutch (where the hands should come to)

5 - From Crutch to Mid-Thigh

6 - Mid Thigh to bottom of the knee

7 - Bottom of the Knee to Mid-Calf

8 - Mid Calf to bottom of the Foot

The Same principal works for female bodies aswell! Again the 8 head principal works better due to it's even number! that the body should be divided equaly between top and bottom.