Just remember that if you pair your Pewter male back to your Cinny girl, you will not get Sterlings, but rather you will get Silver Bullets (if you're lucky). Also, you may want to get a Cinny and make Pewters, and also get some Black Pastels to mix in with the Cinnys. Cinnys and Black Pastels are compatible and will produce an all black snake when bred together. Just some more food for thought to help make your decision even harder (sorry for that).