Thanks, Patrick. You've hit on something that I had overlooked in my OP: modularity is attractive. The domains I have are business-related and may be retired at

Thanks, Patrick. You've hit on something that I had overlooked in my OP: modularity is attractive. The domains I have are business-related and may be retired at a given point. Unpicking one from a lump of connected domains is something I'd rather avoid. I've had the multiple-emails-from-one-Google-account and it wasn't for me.