I recently installed dual liner on my 2011 short bed. I decided to go with it for the combination of the zero slip bed and the fact that I can remove and put it back in a half and hour. Mat is very thick and fit of sides and bottom were perfect. Sides are already predrilled for tiedowns. I ordered by phone direct from manufacturer and was treated extremely well. Ordered on a Monday and received it on Thursday. Sprayons look the best if done right, but don't offer any dent protection. Also once you do it there's no turning back.