Have my 2013 Silverado ready to be Line-X. I called a couple dealers and so far I have two options. First is just a standard Line-X of the bed ($485), second is Line-X adds a "UV Protection" that stops fading and keeps the dark color of the Line-X. It cost up to $600. My question is this, I have UTTG that works amazing on my wheels and outside trim. Would it work just as well on Line-X? Also, if anyone has bought the UV Protection, was it worth the extra cash? This is something that will be permanent on the truck and don't want the fading of the bed liner taking away from my paint.