Also, when you think of "breeding for fluffies"... I don't think there are breeders who actually breed for fluffies. Unless dogs are tested for the gene (which they rarely are since it is not a gene with health consequences) there is no way of knowing which dogs are carriers since it is recessive. In Oakley's litter the other boy was a fluffy corgi and it was the moms first litter although the sire had been bred multiple times already. They had no idea that both dogs were heterozygous for the gene and ended up with the fluffy. The breeder had also bred the mom's half-sister to the same sire (at the same time, litters 3 weeks apart) and there were two fluffies in that litter! So, a total of 3 fluffies they had absolutely no idea they would get because the breeder had purchased both dogs from another breeder with no fluffies in their line. You honestly couldn't tell the difference between standard coat and fluffy until they were about 6-7 weeks old. Obviously, the fluffy corgis are not bred and they were all pets with spay/neuter contracts. Although if you want to get scientific, you could breed a fluffy to a standard as long as the standard has two dominant alleles (which would require testing). The only puppies produced from such a cross would be heterozygous for fluff but have standard coats. I just don't think the "risk" of producing fluffies is worth genetic testing.