just the same as breeding albino to albino = 100% albinos, or pied x pied = 100% pieds, albino pied x albino pied will produce 100 percent albino pieds, it's how recessive genes work, regardless of how many recessive genes you work with, if both parents are visual for all genes, then all their offspring will also be visual...

assuming all things go according to plan, and you hit the sex ratio and odds the first time around with the double hets, it will take at least a decade before you can have a breeding pair of visual albino pieds from your present albino and pied....