Bed Liner Question for Working Trucks

[Old Goat1]

Truck is a year old and enough paint is scraped off I don't mind them sanding the rest. Real question is, what type of bedliner allows feed sacks to be slid off with out tearing or pulling a hernia. I always have them load to the rear first but don't want to pull feed sacks across some stuff that won't let them slide. More or less, get the ones farther up in the bed.
Some you smart guys let me know.

Old men are smart enough to tell them load it at the back.

[brushtrooper]

I have used Durabak on a few 4x4's and recently did my old crewcab f-350 completely with it. I have no complaints at all. They make a smooth version, I have never tried the smooth. I have just used the rough.
I have always rough sanded, cleaned according to directions and applied with a roller.
Here is a link, go to colors on the right side and click, scroll to bottom for the smooth colors.

http://www.nonslipcoating.com/automotive.htm

Oh yea, the non UV, will fade and flatten out, UV protected will not fade and keep the shine/gloss