I have always warned people against the plastic liners. They do more damage than good. We used to put grease under them, but nothing you can do is a long term solution and they will eventually trap junk under there and cause damage. The spray liner is the way to go :thumbsup: ....Line-X, Rhino, Hot Spy etc, etc... I don't trust any of thdo-it-yourself stuff personally...just goes back to my belief in "you get what you pay for" :yes: :cheers: