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As an experienced caver, I can say @studiohack & @manoftheson both good advice. Here's some additional pointers, in no particular order. Some of this is copied from my comments, but new info as...
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As an experienced caver, I can say @studiohack & @manoftheson both good advice. Here's some additional pointers, in no particular order. Some of this is copied from my comments, but new info as...