I have always liked flake paints. How about a black with silver, gold and green flake in it, but a bigger flake than is in the stock paint? The Machine Gray (06 and forward CRossfire color?) has a really nice green flake in it that just pops out in the right light. To be quite honest though if you ever get the chance to see Acrispy1's black Crossfire it will blow you away. I've never seen a finish so beautiful and that is courtesy of Tony's talent and Adams polishes, nothing else.