If I cross my BCM roo over my Biele hens, I should get a sexlink, correct? Has anyone done this and would the male offspring have a white dot and the female not have a dot?
As long as the bielfelders are barred, that sounds like a perfectly fine sexlink cross. I am not very familiar with the breed, but it should work as long as you don’t get any light colored chicks, as it can be hard to spot a spot on those guys.