Well after looking at velobard's results, I decided to go do the half-hood cleaning. This was my process....
Wash w Megs Gold Class
Megs Clay
Wash again
ColorX
NXT Paste X2
The results were as expected.... there are still a lot of greasy fingerprints on the end of the hood from mechanics in the past.
I cleaned the left side. It looks like a lot of dull spots up towards the windshield but that is actually reflection. It does have a little bit of shine to it, compared to the extremely dull right side. Hopuflly a good clay and strong compound will take care of the contaminents on the paint.