Leighton makes a good point also! Normal paints (2 pak, enamel, etc.) when damaged can be colour matched, sanded and blendid in. Whereas, take metallic for example, (try not to drag on here!) the paint has to be constantly mixed (mix with a ball bearing in the pot!), because the flecks do sink to the bottom of the pot. There is no guarantee that your consistency of mix will be the same as when originally sprayed.
Also, the pattern in which you spray is not the same as standard paints. Normally you apply in horizontal strokes (sounds naughty

), with metallic, it is suposed to be applied vertically, then horizontally (or vice versa) to gain most conformity to the finish.
Lots more things on this topic, but I think that you get the gist of it.
Different people spray with different techniques, maybe someone can offer other spraying tips easier than mine.
Keep us posted with your decision, and queries.
