I know this has been covered before so I figure'd I post up for a correction. I read that 20% will match the rears if done on the front glass. Well according to a tint meter, 35% will match perfectly to the rears. Since I want 20% all the way around, we are getting 20% done on the front two and 35% on top of the factory glass done as we speak. Just wanted to clear things up I guess. I will take some pics this week once they've settled and the car is clean.