i have 35% on my driver and passenger windows, 5% everywhere else, nothing on windshield except the stock strip in the glass.
I got mine for about 225 if i remember correctly with insurance. if i was to get pulled over they'd strip the two windows up front and let me get the ticket removed. I can then come back and get my windows re applied... this can happen a total of 2 times.
It hasn't happened yet, but after the second time is when i leave tint off the roll downs up front... in MI it is illegal to have anything on driver/passenger windows or windshield without any eye doctor notes... any other windows anything goes!
P.S
If they give you a hard time about the darker shade, tell them you don't want a receipt and you'll pay cash. That should turn change their mind, it always does. *owned*