I know something about blue mutation napes, in fact i'm pretty up on them. I've paid for a split to blue hen and waiting for a male to hatch. If your serious you should PM me and get my number.I have the contacts.What part of the world are you in? There;s only one person to get your stock from.(IMO) Depending on how much your willing to spend and what your goals are, i'd suggest Split to blue birds. If your looking proven blue breeders then i think your in for a big disappointment (buyer beware). 20-30k is a lot to lose. There's alot more to it than meets the eye. I know most of the peoples who have these birds and the history surrounding them. IMO there are no proven breeders on the market that are worth having. BTW i would say they are less fickle than DYHs but that depends on your setup.( A nape is a nape regardless of mutation)