Any thoughts on spray on v. drop in liners. I was set to get a Line-X sprayed on, but I have heard of some problems with durability. My friend has had several tears in his after scraping with rake and pitchfork and the material never looks like it was sprayed on as deep as it should be. Now I'm leaning towards the drop in liners. I get get a good used one for $100. I run a tonneau, so rust isn't a huge concern.