I get the same tint on every car. It took me years to find “the guy.” I found him about six years ago. We use Llumar Formula One Pinnacle Series. I always have him tint the entire windshield with Air Blue 80 and the rest of the windows with 15%. It isn’t as dark as it appears. The Pinnacle Series is rated 15% but it seems more like a mid 20% in darkness. With the blazing Florida sun, the Air Blue 80 takes the edge off, but doesn’t make it so dark that I can’t see at night.