Sounds just about perfect to me. The only thing that I can think of to add would have been to reference the standard of perfection - the authority on the matter. I think that for someone who had been breeding as long as this seller claims, there may well be basis for her claims in the history of the two breeds - from what I hear out of other long time breeders, it really was an accepted and expected thing to get a hodge podge of the characteristics from the different blue egg layers in a batch of chicks. Again, that's absolutely fine if that is what a breeder and buyers are interested in, but to breed something under a name, it really must be bred towards that standard's agreed upon characteristics, as described in the standard. I'm just not sure how many long time breeders realize that there has been a standard set.