All I know is Kevin has females up to size and im sure a couple other people do, im sure someone is doing Champ X Champ if we had a female big enough to breed we would shoot for a Super.
i just find that weird, we already have mimosa but never tired for a super champ?
For the mimosa, you only need a mature hypo female. Easily something that could be produced in 2 seasons. Breed the champ to the hypo, then breed the resulting male champ het hypo right back to the hypo. For a champ x champ breeding you've got to take the time to raise up a female champ.