Mission models metallic paints

I am in the process of switching from enamels to acrylics, and really like the results I have gotten from mission models paints. They are so easy to use and the results are always better than my airbrushing skills.  Now, I have found myself in a position where I need some gunmetal paint but do not know if I should try the cold rolled steel or not so I thought I would ask if anyone else has tried it.