Hey Videoboy, I wouldn't put meguir's on your hood insert or on your half moon. It does make them look great, but when it rains it causes the meguir's to run onto your hood and make "drain" dark areas. It doesn't come off of paint with just soap and water, you actually have to rewax the whole hood to get it removed. The same thing happens on the rear door when you put it on the half moon. I did it once and then it rained 3 days later and I learned my lesson.
I've started simply waxing the insert and that usually makes it look an even tone color for about 2 to 3 weeks.