Joining the UPA

[Arbor]

Yours carry both BS and White eye, as well as have a chance to carry Pied. It would be better to pair it up with something like a BSDark Pied white eye out of a BSSP. You then have a chance to get more than just white colored birds.

The highlighted statement is incorrect. If the bird is white, it won't carry pied, otherwise it would look pied. All birds will be blackshoulder as well (not just carrying it or split to), meaning if you bred them to a blackshoulder bird of any other colour, you would get 100% blackshoulder chicks. All chicks from the BSSP pen will be double copy white eye (again, not just carrying it or split to it).