My Outfitter 2 came with a pair of these but after owning the boat for a few years I never used them until a 6 day trip to Desolation Canyon this past week. Now I can't imagine paddling with out them. Easy to install, easy to adjust and very easy to get used to. I even had to make a quick exit from my boat when I got stuck in a hole and they did not impede me one bit. If you have these, use them. If you are considering them, buy them.