It's going to boil down to a weight vs. durability, I'd imagine. I currently have a membrane silpoly tarp that has one small tear and I fear for it's lifespan, especially around my boys. My wondering is that 30D might be worth the weight penalty, as silpoly is already more vulnerable than silnylon of equal weight/denier. The only current 30D silpoly tarps I know of are Warbonnet's. Thanks in advance for weighing in.
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