PPG is the paint of choice for me. Almost every painter is familiar with PPGs self-etching primer and primer/sealer system that maximizes adhesion and minimizes bleed-through once the paint is applied. With all the upheaval in new paint technology, the more you can rely on proven systems to prevent lifting, orange peel, or fisheyes the better. If you want to know heartache, watch someone drop to his knees upon viewing his car covered in lifting paint. Its bad.