I believe that a Sizzle is a Silkie with non- silkied, frizzled feathers. It would be a first generation cross between a Silkie and a frizzled bird of some breed. Yours seems to be results of Sizzles crossed back to a Silkie. They have retained the frizzle gene, and they have gained a hookless gene. I know of a breeder who calls them "Frizkies".