I checked all of the young birds this evening as they went on the roost. Two males look good enough to get DNA tested. Probability is good that at least one will be homozygous for blue eggs. I have 2 older males that have too much white on the saddle so I want to cull them and replace with better looking offspring.
Four young females have outstanding lacing. I will probably have them DNA tested to find out which are homozygous for blue eggs. There is a good chance I will wind up with 4 out of the 6 (males and females) that are homozygous. If so, we're off to the races in terms of getting a reasonably stable black laced silver line of blue egg layers.
I'm thinking pretty hard about developing a golden laced line. I have 2 young males one of which has decent lacing. If I test both and one of them is homozygous for blue eggs, it would be trivial to breed him to the 3 golden laced hens and produce a golden laced line.