Confused.. Pewters..

[LGL]

After much reading.. I summarise this....

Black Pastel X Pastel = Black Pewter (Pastel Black Pastel)
Black Pewter X Pastel = Silver Streak (Super Pastel Black Pastel)

Cinnamon X Pastel = Pewter (Pastel Cinny)
Pewter X Pastel = Sterling (Super Pastel Cinny)

Black Pewter X Pewter = Silver Bullet. Incorrect. :
Black Pewter x Black Pastel = Silver Bullet (Pastel Super Black Pastel)
Pewter x Cinnamon = Silver Bullet (Pastel Super Cinny)

Black Pastel X Black Pastel = Super Black Pastel
Cinnamon X Cinnamon = Super Cinnamon

I wonder... Silver Streak X Sterling..

A Silver Streak (Super Pastel Black Pastel) crossed with a Sterling (Super Pastel Cinnamon) gives each egg 25% chance of being a Super Pastel Black Pastel Cinny (a form of a Super Pewter since Black Pastel and Cinnamon are allelic), 25% chance of being a Super Pastel Black Pastel (Silver Streak), 25% chance of being a Super Pastel Cinny (Sterling), and 25% chance of being a Super Pastel.