Recessive and dominant white in silkies

[truegritacd0]

I've had paint silkies for several years now and they were just a fun pen but this past year I've decided to concentrate on improving the quality of my birds and focusing on colors. I know that when breeding paints you're supposed to get paints, blacks and whites but in the several years I've been breeding this particular group of birds. I always get comments about them having good white color and not having any yellow/gold leakage. I've never produced solid blacks or solid whites until this year. I have not added any new paints to my line since I got the original birds I started with, except this year I put one of my white showgirls hens with them to get paint showgirls. I've gotten solid white birds this year and hatched 3 chicks with partridge feathers, not black. I read on a post in byc, that paints are basically a partridge bird with dominant white gene. Any info is appreciated and should I keep the whites and breed them to see what I get?
I've added some pics of 2 of my paints and some from the birds that have partridge feathers.