That's interesting about the Mottled showing up. It has shown up in the Breda here in the U.S. too. Although Europe has more colors only the Black/Blue/Splash was imported but now they have mottles showing up.
They may have been referencing the Dark Blue discussion going on the Sumatra thread right now. There seems to be a non-standard blue effect happening in some lines that have been bred Blue to Blue for a long while. The result is a Navy colored bird with irridecent lacing. You think you are...