Well...
I think every 'flavor' has it's place. I've used Metalizer, Tamiya, Gunze and Alclad as well as some lesser know brands.
You can tint Metalizer with almost any paint, you may not get the results you want and the mixture will not be stable if stored, but almost any paint will mix into lacquer.
I can't stay out of the great brake rotor debate either. First, the finish you choose is up to you, do what makes you happy! My observations on rotors leads me to use a bright stainless steel finish.
That's based on years of looking at 'real' car parts with a critical eye toward replicating their finish in scale. I really do know what drilled rotors look like 'used' as I've run Brembo's on my car for years. I just had them turned a couple of weekends ago, so their appearance at each stage is fresh in my mind. Though I wish I'd taken pictures!
