This is a paragraph from a letter I recently put on the Sizzle list. I am by no means the expert, its just my attempt to clarify the language of our project so we all know what each other is talking about.
FYI - for the sake of simplifying terminology I have started "labeling' my birds like this. This is just my system but, your welcome to make use of it if you find it helpful.
I call "proper" Sizzles - hard curled feathers & generally the rest of the Silkie traits as in the standard, Sizzles with a capitol S
The other variations, ie; smooth feathers with the other traits, silkie feathers with the other traits & curly silkie feathers with the other traits, I call sizzles with a small s. They would be "smooth sizzles", "silkie sizzles" & "frizzled silkie or frilkie sizzles". They carry the genetics (hopefully) to produce Sizzles with a capital S and are worth breeding back to by one of the other variations.
I always breed different variations to each other. I'm doing a lot of that this generation. Smooth to curly, silky to hard feathered. I'm working with the idea that once you've set your basics, Silkie standard type with hard curly feathers, it doesn't make sense to breed back to pure silkie anymore. That just seems to promote silkie feathered birds. I had more of those then I would have liked last generation. I even debated not breeding the silkie feathered sizzles I have kept but because they are F3, it is my hope that they are carrying the genetics to produce Sizzles if bred back to Sizzle roo. Guess I'll know more next fall!
I haven't tried to breed curly to curly. I still haven't figured out the genetics for that..even though Suze has tried to explain it (thanks Suze) and the info I have on it is conflicting so, ...I might try a few this year and see what I get but, not sure yet.
And that is why I'm trying to be more conscientious this year on records. I NEED to know what is producing what, not to mention that we will have to have records of our breeding programs if we ever hope to become a recognized breed.
Just more things to think about!!!