IF you got that technical, micrometer differences in paint thickness would make some kind of difference. Its the idea that it makes enough to matter that I have never gotten.
By the way, I know a million of these threads have been done, but give it a rest with that search feature crap. Who wants to read some 3 year old post? the whole point of a forum is to interact with live people. If its an old thread idea, start a new one if your so creative.
+1