I have used whoopie slings but decided there was too much fiddle factor involved in using them, they limited where I could use them with some of the trees I have hung from and I have talked to people and or read reports of hangers who left their tree straps behind and did not discover it until they got to their next camp site. I use straps and Dutch clips and buckles... everything stays attached to my hammocks so I can not leave anything behind.
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