Alls I know is that Silver decks are great. had the original deck and loved it, updated to the slide in sides deck with the telescopic ramp , wich helped on my lifted chevy.
Now I am awaiting the new flat bed, for my truck. On the count I sold the deck, because I knew I was going to need a flatbed next year for work. So I only thought why not kill two birds......
And I have run Apexes up and down the ramps and slammed them on the deck, and no failure. if that means anything about durability.