it looks mean but i went a % up after driving two vehicles with 5% all around. i got 2 tickets in 5 years for it but it was just too dark and sucked at night in the rain where its hard enough already. my buddy from miami says they put 5 on, then another layer over that and its pretty much black
my personal taste, i like the windshield strip with 5%. also lets you keep the sunvisors up and still see traffic lights and crap when you are right under them.