So basically they all have at least one flaw. Some are very very close to perfect but not exactly perfect. I think in the eyes of very high quality breeders they would all be culls. But some , just barely. My question is , is it AT ALL possible to get ANY perfect birds, by chance?
Yes. Even though they have flaws, they could throw some nice chicks, depending on their genetics. Probably not a lot of them, but if you hatch all their eggs you are likely to get at least a few that are very nice.