Darkest legal tint in Texas is 30% (metalized) 35% (dyed). I've never had a car tinted before or asked questions. First, is that really dark? Also, any suggestions on getting darker in the back and lighter further up the car? Was thinking about getting the same tint all the way around except for front windshield of course. Or, would it look better with darkest on back window and lighter on sides? Pls help

.
Also, seems the most popular tinter in San Antonio is Mother's Window Tint and Alarm, anyone have experience with them? They use 3m, Johnson, and Huper Optik; which one is the best? Is there a huge lifespan difference between the dyed and metalized? I read the best was metalized though. Any help would be welcome.