If you want to produce laced chicks from your crested ones, I suggest you cross one of the Wheatens to the Sebright. Then cross one of those chicks back to the Sebright, hatch a bunch of chicks, and see if you can find some with lacing that also have crets. It shouldn't matter whether you use a...
Crossing to a black bird should get you birds that are mostly black, probably with some gold leakage but not pretty lacing. Similar if you cross to a blue bird.
If you cross a Gold Laced Cochin to a Cream Legbar, you should get chicks with patterns of black & gold or black & brown on them, but...