There is a way of correcting people with out being so stuck up.I don't think anybody said that swedish flower hens are not a "breed" or a "real breed"....The only thing they are NOT is a "breed" that can be put into a "breed standard" of perfection like other "breeds" of chicken, as they come in a variety of types. There is no need to change anything or act like omg we have to establish breed standards and start showing them (even though it would be nice for some to do), but I think this breed is as awesome and perfect just the way it is.
and as far as your "getting new blood" goes, here is a very good article on that, as I personally was wondering what you need new blood for at this time....
"The novice in breeding is accustomed to refer to this as going outside for "new blood," but that is not the real object, and the term is misleading. An expert breeder does not go outside of his own stock to get new blood. He goes to get a particular quality or character that some other breeder is getting a little better than he is, or to get something that will give him a particular development or blend of characters that is not so readily made in his own stock. The poultry keeper who knows how to breed is not in the least interested in any "new blood" except as it may be expected to give such results when combined with his own. He would much rather not have the new blood at all if he could get the characters wanted without it, for bringing in new blood has a tendency sometimes to bring out again in both lines old faults that had been suppressed.
The novice who buys new blood usually mixes it fully at once with that of his entire breeding stock. The expert breeder uses new blood only in special matings, and eventually mingles it with that of his general stock only if he finds that doing so will give the results desired. As a rule, it is much diluted before he does so, and it may be that out of all the offspring in several generations from the mixture only one or two birds are ever used for breeding. It is not uncommon for breeders to work for several years with small lines made up in part from outside stock, and then discard them."
