You can get the genetic codes from the Phenotypes and Genotypes page.
The calculator is set for a Bronze turkey (bb CC dd EE NN PnPn RR SlSl SpSp). To change it to a Slate (BB Dd) change bb to BB and dd to Dd and leave all the others alone. To change it to a Royal Palm (b1b1 cgcg nn or n-)...
It does not matter. The only difference with using a Royal Palm tom is that all of the offspring will be carrying a Narragansett gene. If you use a Slate tom, none of the female offspring will have a Narragansett gene but all of the male offspring will carry a hidden Narragansett gene.
You...