-Sort of a pain to install
-Pretty weak (small rips when you slice it with your edge)
This is a little video of how it performs. (Note I am NOT the best at snowboarding)
Some things I have learned from using the box are that it is better to have some sort of material around the edges as that is where the plastic rips (like the metal the mountains use), and the best way to fasten it on to the wooden top is to use contact cement to glue it first and then fold it over the edge and staple it.
Good luck if you decide to make your own and tips are always welcome.
hahaha I just bought the same plastic today and was trying to figure out the best way to keep it on the box. Then ran into your post! I'll try your method thanks! Have you thought of maybe putting some ABS pipe on the edge? That should help with the plastic ripping?
Now if only it would snow here in my part on ontario.....