I live in Texas and plan to get all windows (minus the windshield) tinted pretty dark. I am concerned by the rear window. Anyone with experience know if a good tint shop has a tint large enough to cover the rear window with one piece? I am worried about seams or only tinting up to a certain level. I want it to look clean. In addition I don't want to lose the ability to see outside through the top of the roof. I'll be interested to see what something like a 15% or 10% tint does to the top of the car and visibility. I might just do 20% all the way around.