When I sprayed my truck I put the pearl in a clear mid-coat and then buried that with the clear top coat. After a little wet sanding with 800 grit the "edge" disappeared.
http://www.clubhotrod.com/photopost/...side-2-med.jpg
The lid...
http://www.clubhotrod.com/photopost/...flames-med.jpg
I call these "Stealth" flames because they only show up when the sun or lighting is right...
Mark