I guess my opinion is this: As of now we don't know if the color occurs naturally or if they are crossed with Weim. Most certainly look to have Weim in them, but that doesn't necessarily make them a Weim mix. I mean, paint Nova silver and she could pass as a Weim mix at the shelter! But until we know the origin of the color, I don't think it should be bred for. I couldn't call a silver Lab breeder responsible since the facts are not known yet. I just wouldn't buy an unaccepted color unless if it occured naturally, and the breeders weren't breeding strictly for it and sold it as a pet on a spay/neuter contract. Like merle Danes occur naturally in harlequin breedings, but they are not standard. There is nothing wrong with these pups. But I have yet to see a Chocolate Lab just produce a silver pup if they are not from a silver lineage themselves. When that happens, I'll believe it occurs naturally