One thing that was pointed out to me is to make sure the installers take out screws for the tail lights, tailgate panel, and cargo tie downs, if any. I had mine done that way, and if I ever have to take any of that off, I won't have to go cutting up the liner to get those off. My installer sprayed those separately, and it makes a much more professional installation. I got Line_X. My uncle got a Rhino liner sprayed in, and they just sprayed everything. It all depends on who does the install, so definitely look at their work before you commit. I also got over the rails, since anytime you put something in or out of the bed, you will probably scratch the top going over. With todays paint jobs, just a grocery sack will scratch it.