You post a picture of sergio at a favorable angle. I will post one of Arnie. Legs/calves look bigger here.
If you'd read the proceeding pages, you'd have known that the pic you posted is not representative, because (1) Oliva was farther back from the camera, (2) wasn't tensing, and (3) didn't have legs properly posed.
The other pic is when those factors are eliminated, is the accurate one. Sorry to burst your bubble with reality.

Here's some more reality, Sergio owning Schwarzenegger on taper, back, tris, legs, delts...

Big difference in waist size, contrary to your misinfo.