Thought I'd share the difference of looks between 1 coat and 2. According to Veil Guy the protection is the same. So, I guess it just depends on the look you're after. Drivers side is 1 coat, passenger side is 2.
In these pics it looks even darker b/c its wet. Picture 2 is a better representation of 2 coats. On my expedition, 1 coat of Veil looks better than no coats! It was kind of yellow before and I personally don't like the looks of yellow lights.