I ended up with five of this particular mix. All five hatched, while the same hen who had two eggs from my other Roo one hatched and one didn’t. All five are yellow (which I assume they will all be white). Four of the five have small black spots and one seems to be all one color. It looks like...
I am actually incubating eggs with this mix, but my leghorn is a Pearl white (with white legs, rather than orange/yellow, like normal). I’ll post the results. Because similar to your experience, I’ve been looking online for months regarding this particular mix.