Since the BCM's have just recently been accepted by the APA, I think the best thing for someone wanting to learn more about breeding"good" BCM's is to read the APA standard. Also, the general information about chickens in the "Standard of Perfection" is something everyone wanting to breed toward a standard should read. There is so much to learn. I've learned a lot from reading these threads on here,
but I've also learned a lot from the APA standard. Unfortunately, sometimes misinformation is given on here.
I don't think people mean to do this, but there are misunderstandings.
The BCM's have been in the "project" stage here in the U.S. for a few years, until last fall when they were accepted. All the marans varieties are a work in progress. To be able to go out and buy eggs or chicks that meet an "ideal" is somewhat unrealistic. Breeders have put a lot of time, effort and money into trying to produce a standard type that reproduces true.
It is understandable that some of the starts people have in this breed have been less than perfect. Heck, even in old, well established lines some of the "crap" still pops up.
I guess one of the points I am hoping to make here is that it's going to take more time and effort to produce marans that we are consistently happy with.
The issue of misrepresenting what you are trying to sell to someone is a totally different issue, and I don't wish to get into that right now.
It is maddening as well as heartbreaking.
I just hope everyone, especially the newbies are not discouraged by less than perfect birds. There are a lot of good ones out there and the best thing to do is educate yourself as much as possible and plan to do some culling.
Right now my hat is off to some of the folks on here who understand genetics so much better than myself. It's something that I've just never taken the time to learn in much detail at all, but I think I'm at the point where I could benefit by learning as much as I can, or at least "buying the books" so I can refer to them when my memory fails me.