I agree with the post above. You can't breed for CQ's like normal breeds.
A CQ is just another flavor variety of a red sex link...but ONLY for the first generation. It *should* be a red based rooster over a silver (white looking) hen. The first generation offspring will produce red fawn down female chicks while the mother's silver gene follows the boys and produces yellow down male chicks who become white males with red on shoulders/wings.
She may be breeding a CQ to a CQ, but you won't be able to sex them at all. They will be 50% yellow down male/female or 50% red down male/female.
And since they were a hybrid to begin with, a hybrid to a hybrid produces simply a barnyard mix hybrid.
That doesn't mean these aren't fun chickens and won't lay eggs. I like barnyard mixes for hybrid vigor.
But it does mean that coloring on the chick is meaningless as is wing/tail feather growth (that too is another sexing trick to breed a fast feathered line to a slow feathered line, which you don't have). You will have to wait to see if it develops a large red comber faster than the others.
Sorry.
LofMc