I agree, you don't want to breed GLW to BLRW. This is actually what started the whole problem with the off coloring in BLRW's. GLW do not carry the mahogany gene that deepens the gold coloring to red, so all you will do is dilute the red in any resulting BLRW...any offspring you get will not be quality BLRW and you'll be breeding the resulting brassiness out of your line for years.