Cuben Tarps

Hi:

I'm thinking of making a cuben tarp, and not sure what weight to get. It comes in 0.33 ozs/square yard, 0.48 ozs/square yard, and 0.75 ozs/square yard?

Does anybody have any experience with this? Which one is the best for tarps, or most commonly used for tarps?

Thanks!!

People have used them all but the lighter ones may not remain waterproof for extended use. This BPL thread may give you some useful food for thought.