Always remember
Cull Hard.
Any red, cull.
Clean faced, cull.
Muffs / Beards are dominant, one copy of the gene will produce muffs / beards. Two copies will produce fuller beards. If you breed two birds, both having only one copy of the gene, approx 25% will be clean faced. I would eliminate...
We had an issue with our BBS and feathers on legs.
Close inspection and the offender was gone.
It is dominant so it should be evident on the breeders birds.
The offender we had only had a few very small stubs, so it took a very close look to find it.
Good luck.