My Treds came in last week from Sierra Expeditions. Shipped free @ $150. I was also looking at the Maxxas from Amazon($120) or Maxtrax($300, which was not within my budget).
Even if the Treds give away, I do plan to have a winch and some backup planks, so it works out for me. The Treds do have a lifetime warranty. It is a little inconvenient, but if I see anything wrong with them(cracks etc), I'll be asking for a new set in advance. Will not be using them as bridging ladders.
Now to figure how to mount them.
I keep looking at those but I can't think of a scenario in my past where they would have been useful.