I've read that the dyneema fibres in the core suffer from being crushed in the Garda hitch and it causes the cord to lose its strength. Also it seems that the pressure of the hitch just causes thin cord to degrade in general.
It's all to what you want. Dyneema is good and most people use but it takes longer to set up and get it right plus there is more parts to remember. The ring and webbing is one setup but it's heavier. Mines more so because I've got heavy duty webbing but I know it won't fail on me and you can't forget anything being attached to the hammock at all times.
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