I'm going with Thermaltake gear for my custom loop, because I have a Thermaltake chassis and their components support ASUS Aura LED sync. Reviews seem very good except for the RL480 radiator. Many people complain that it's made out of zinc alloy aluminum and that can ruin other components in your loop if they have different metals. I don't know if it's true, but I want to avoid replacing components as much as possible. Is there a 480 radiator recommended over Thermaltake's? I know Thermaltake recently announced a new copper radiators, but I can't find them for sale anywhere yet.