I understand what your saying as cb do not keep the VIBRANT colors as wc's (usually) and there is also NO garentee that having colorful parents will create a colorful offspring.
I just thought I would try the pairing again and see what I get this time around, if the offspring will continue to look like Kongster or maybe look like a aquaflame male/female....
Also as far as the Kongster, to me he seems to have his OWN look now, at a younger age he looked just like Chinook, but now his face/snout is more elongated like KONG's and he is getting spotted (light blue in his dewlap). At an earlier age he had a very short snout like a yellowhead. I do not think he looks like a female yellowhead AS much as he did. IMHO 
I know some may feel strongly against the cross but I wanted to see the colors/patterns that may come from it.
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