I just know some of it, I dont know any of the confusing genetic symbols like ig^ml+wC>sc, it is all confusing, I just know what happens when you do certain crosses. We used the same basic idea for dun laced, just used silver laced and duns instead of blue and blue laced red. Another pretty bird is blue laced silver, you can get them by crossing a silver laced roo to BLR hens, all chicks will be either blue laced silver or SL, some will show red, then just cross back to SL to get rid of the red, if you wanted to make a sexlink with BLR and SL, cross a BLR roo to SL hens, the roos will be SL and the hens will be BLR I think.