I have been working with all three for about a year now. One thing people have to understand with the fibros. The males will start out all black and when they age they will go into a mulberry color. In all 3 types. I would love to have someone show me a pic of a five year old rooster that is still all black. Most people will show pics of birds that are less then two years. And now I know why. Even the birds from gff their roosters mulberry. One thing I have learned in the expensive endeavor of the all black chicken is in the end they aren't all black. And it would take years and hundreds of birds a year to be selective enough to make the breed better. The first batch of birds from gff I got ended up in my stomach. So people just need to relax with the all black claims cause in the end the silkie is still darker then Hmong, svart hona or Ayam cemani. I might even get out of fibros this coming year. Started getting into Gamefowl chickens. Oh yeah also the Ayam cemani is weaker to grow with other chickens and don't do well. So u should separate them. I don't feel like the quality that was brought over to America is that good.