Dan,
I would like to see your gold laced birds. I do not have any experience with dominant white,does it have effect on the tone of gold, or only the black lacing. I would be glad to help, providing blood for your project. I too find relief in finding a kindred spirit who has undertaken a project so similar to mine. What would crossing really good SQ buff Brahma into your lines at this point do ? Besides messing with your lacing for a few generations,decreasing egg production, and slower maturity. I see this in my blue/gold lines future to improve type and clean up the lacing.