Well, that had been my plan but since they are not common here, and I have done my research, I figure I might as well start now. I refuse to buy shipped eggs and pay money for a maybe hatch. I am breeding my two Nn's together and if I can get what I want from them will breed to my silkies. At least I will know where they are coming from and the health of the stock. BTW, I don't "cull". It's a hobby for me, not a profession. I keep what I want and send the others to my sister who raises on a broader scale.The small or no bow tie is usualy the Homozygous form of the nn meaning they have 2 doses of the nn gene. With Homozygous (usualy shown as NN) all the babys will be Nn (Nn means Heterozygous) if bred to a non nn, and all of them will have Heterozygous gene Nn and a larger bow tie. If you breed a Nn Heterozygous 50% of there babys will be Nn if bred to a non nn. You get 25% homozygous NN babys from breeding hetero Nn to a hetero Nn.
If you want to start a SG line you are better off getting a SG and breeding it to your silkies rather than starting with a regular nn. it will take you many generations just to get them to look like SG's and you will produce a lot of culs in the process. you will save yourself a lot of time and trouble by trying to find one perfect SG and breeding it into your flock.