What a great period in bodybuilding!! WABBA still exists today----has contests in Europe and sports some very impressive physiques, yet never sees the light of exposure in North American based muscle magazines. I loved Sergio but Fox does have superior conditioning and harder legs. Where Sergio dwarfs Bertil is the back quite obviously. Fox had exceptional muscle density and mass he should of beat Samir in the Olympia in '83. Fox still inspires me for his sheer muscle mass and physical might in the gym.