I have a small RU 3 dinghy. I haven't used it much, mainly as I am hesitant to run it up on the beach to go to land. The bottom seems thin and a small piece of glass, shell or anything with a sharp edge could slice it easily. Has anyone tried a reinforcement sheet as a protective layer, if so, how was this accomplished? It is not a hypalon rubber. What adhesive was used and what was the thickness and name of material of the layer? Possible links to a supplier would be great as well.