I saw that Ben Johnson,Gatlin’s and Greene’s calves are a lot different from other elite spritner’s calves.
If you look at mosto f the other elite spritners valves they have like this square shaped muslce directly below the knee and then a tooth pick while the above three mentioned have claves that flow like water that have a natural symmetry and gradually flow down like an oval (hard to explain)
I’ll see if I can find pictures to validate my statement