Upon following the advice of his mentor, Sion obtained the best of distance bloodlines including representatives of the Old Verviers strain and for decades cultivated what he referred to as his Old Gris (grey) strain, so called because of its origin from a son of a famous French distance racer named Gris Dugniol. Sion had purchased a champion mealy cock from M. Gris Dugniol. On the dam side his family went back to the Vekemans Red of the Wegge strain. The latter pigeon being one of the greatest in the history of the sport in Europe. The Mealy cock was bred with a mealy hen and produced a blue hen with black eyes. This hen proved to be a champion in all races. She was later mated to a cock of Pynen/Delathouwer bloodlines. It was from this mating that Rouge Sion, one of Sion's pivotal pigeons, was produced. The Rouge Sion went on to be a great racer and also bred many winners.