I appreciate your efforts on this matter, I would like to point out a few things, I would appreciate if you type the genetic nomenclature in the right way: Dominant genes will take precedence over recessive, dominant genes first letter will start with capital letter, recessive genes in lower case, the + sign means the gene is of a wild type background and currently found on Red Jungle Fowl so not a mutation of what is currently found in wild RJF. Commas and spacing, please use them to separate the allelic pair from the rest of the genetic make up, for example a red jungle fowl with slate shanks is described as. e+e+, W+/W+ id+/id+(male)
Clear White Shanks
W+/W+, Id/Id(Id/- for females) based on any e allele(E, ER, e+, eb, eWh, ey) W+/w will also display clear white shanks.
Clear Yellow Shanks
w/w, Id/Id(Id/- for females) based on any e allele(E, ER, e+, eb, eWh, ey)
Slate Shanks of any shades(as to reduce any other plumage diluting factor that will enhance or dilute it's effect but not negate it entirely)
W+/W+, id+/id+(id+/- for females) based on any e allele(E, ER, e+, eb, eWh, ey) W+/w will also display slate shanks.
Willow Shanks of any shades(as to reduce any other plumage diluting factor that will enhance or dilute it's effect but not negate it entirely)
w/w, id+/id+(id+/- for females) based on any e allele(E, ER, e+, eb, eWh, ey)
The only reason Barring has any effect on shank color is because it's linked to the Id(dominant sex linked dermal inhibitor) by like about 11 map units(Centimorgan) on the long arm of chromosome Z, that means that about 90% chance of a barred bird carrying Id therefor clear shanks, but with large enough breeding one can produce B, id+ recombinants
Not only blue, but dominant white will dilute the shank colors, but not so much as to negate the effect..
So I suggest to keep any Inhibitor or enhancer away from the calculator and obviate the e allele from it, just to keep it simple, W+/W+ id+/id+ will produce slate shanks(the shade is of no concern), w/w id+/id+ will producer willow shanks(the shade is of no concern).. quite simple if you ask me.