Hey guys Im almost ready to paint my engine bay and the whole car. Can someone tell me whats the pros and cons of both methods. I was told by a Napa paint specialist that I should Paint my car with a single stage then scuff if, then put clear over it to protect it a little more from uv rays and other things. He said it will give it a depper darker look since its not mixed with a lot of reducers,hardeners, .Its solid and covers a lot faster.Im going with black..guys let me know so I can see what is the best method.Who has used single stage?