There are no breed standards for these hybrids so the hatcheries feel free to give them whatever name they want. One is Sil-Go-Link.
Like the "Rock Red" that makes some sense if the words are spelled out "Silver-Gold-Sexlink" - silver factor x gold.
The "silver factor" at first seems fairly straight-forward to a layman like me and can easily be seen in a barred bird. That the silver genes can be obscured (probably not the right word) by white, adds a certain element of mystery to crossing, however.
There might be some mystery to buff genetics but that may be one of the choices for the sires. And, I'm curious about black sires which I've been told here is a workable cross for sex-links.
I doubt if the breed associations have any interest in the hybrids but it would help to have a little standardization in names. Just dreaming there, I suspect . . .
Steve