So I gave in and had the Z tinted, 45% on the sides, port windows and back and 80% on the windshield. The product is Suntek CarbonXP, their most expensive film which is ceramic and gray in color.
Lifetime warranty anywhere in the USA on color, fading, peeling, etc. The 45% blocks 50% of heat, 99.9% of UV, etc and does not affect reception. The 80% blocks 44% of heat, 99.9% of UV, etc. Not too dark either so I have good visibility at night. He also removed the weatherstripping and installed it down low on the windows to ensure that I do not have peeling issues at all. The windshield has none of that blue tint that the AirBlue product from Llumar has, which is a big plus for me.
I like.
SunTek Window Films and Tinting: Professionally Installed Automotive, Architectural, Safety and Security Window Film and Tinting