All great points Finally! I have tarp camped as bit but with an old MSR e-wing, which is pretty small but even with it I managed quite a few rainy nights without a problem. Luckily I'm not too tall, 5'8" so I'm able to squeeze into smaller areas. But if I had to weather a major storm with blowing rain the MSR wouldn't be enough.
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The wind wont howl if the wind don't break.