I'm about to have my hatch tinted. I'm going to go 35% in front (anything darker is illegal in texas) and 15 in back. (you can't see out of a 5% tinted car at night). The question is, what tint do I need to avoid and/or look for? I know 3m tint turns purple after a couple of years. Llumar tint scratches pretty easy from what I hear. Need Input!