The Manufacturer reps I talked with about Cuben did mention that it has a tendency to burst without warning, as opposed to Spinn. This was observed in sails, obviously, since these materials use for backpacking is a very tiny market (and really not what the materials were designed for initially).
Thanks for sharing! Good for tarps... bad for hammocks. Got it.
How about Bags for gravity filters... pack covers... wash basins... etc.