Hey...that's the same anti-fatgue foam matting I used on my tornado dolloy cradles. Mine was the grey stuff though. And, I placed a layer of out-door carpet on the top side. The Home Depot carpet I chose was called "Olefin"...kinda looks like very fine green lawn...like they have on putting greens. A soft fuzzy feel which does no trap water against the hull and allows the hulls to slide off the cradles when launching. I use the same stuff on my trailer cradles as well and can slide the boat on/off without any rollers at all.
I looked at the typical bunk carpet sold in marine stores...but didn't like the un-eveness of the surface...I had an older boat get gelcoat "dimples" from that stuff.