Yes correct
OK .
first Blaze BC cockerel over Ruby /Jade and thy mama . your hatch will be BLue and Black. from this pen select only BC pullets and cockerels ..
move Pearl to Nimbus and the 2 BC pullets Rose and Lily second hatch . minimun Splash possible ,from this hatch select only Blue copper pullets and cockerels
ony breeding BL and Black .
next year .BC cockerel from Blaze will be mated to Blue copper pullets from Nimbus and Blue copper cockerel from Nimbus will be mated to BC pullets from Blaze .
do this method as many years I you can ,select only the best .you will have stunning line of marans BC/BLC
chooks man