The last time I would have seen it was in the 1980’s when you had to roster 11 starting Canadians including special teams IIRC. The standard make-up was 5 Canadians on the o-line, starting fullback, two slot backs, and on defence the safety and the nose tackle, for 10 there, plus the kicker/punter (one doing dual work, or both being Canadian). And the Bombers once had an extra Canadian start with House/Poplawski at slot, the 5 OL (Walby, Bonk, Bastaja, Moors, Nemeth, and later Bauer, Black, Molle and Rodehuskers), Kehoe, Huklack or Hudson at fullback, Bennett, Flagel, or Allen at safety and Mikawod at nose tackle. Add Cameron/Kennerd and we had 12. The extra starter was Darryl Sampson at halfback, as his mom was Jamaican I believe so he actually qualified as a Canadian starter, so we could roster 13 Canadian starters.