I'm guessing that I will see more and more of this type as I'm selecting for lighter hackle color. This guy is late to show color, so usually that means light straw color hackling.
you absolutely correct . lighter you go worst will get as with a straw hackle on the BCM .
the barring ( cuckoo ) genes will dilute the Copper to red/Orange tone . and will turn the straw hackle to light Gold .
the Standard call for the Red/Orange colored hackle and shoulder on the GCM rooster ,coppery red Ears tufts . a rooster with this marking will give nicely colored hackle on the pullets.and well marked cockerels .
the rules of selecting a GCM and the BCM are the same except the extra barring ( cuckoo ) genes, that all ,the rest is absolutely identical ER/ER. s+/s+, MI/MI. Mh/Mh. Ar/Ar. b+/b+ for thr BCM and B/B for the GCM .
we apply the same thing on selecting the SCM ,has to be a same as a Birchen with extra B genes ..
chooks man