Good summary. But why bother with Spectra/Dyneema at all? Climbers like it because it's insanely strong for a given weight, but most bushcrafters don't have the same concerns about weight. Also, you don't want to use 3mm Spectra to suspend your hammock because you'll end up cheese-wiring the tree in half! And you won't trust it anyway...<snip>
In short - yes Dyneema is good for hammocks; just get some long enough to leave long tails after your knots (this applies for flat webbing or rope) and tie stoppers on the end and really chose your knots well or you will wake up on the ground.
Two or three turns might work for you, but I have seen it mark young ash trees when done with 6mm rope. Monthly storms don't tend to crush the bark in a ring around the trunk. Using poly or nylon 1 inch webbing is so easy I don't see why one should do anything else. You don't even need to have loops sewn on the end of the webbing, there are plenty of knots that will join a line to it without problems. BUT, if all you hang to is mature Scots Pine and ancient oaks, you can probably get away with the rope, but it won't work acceptably for all situations.Just wrap the spectra around the tree two or three times, that will spread the load.
Less damage than the monthly storms.
It is seriously strong and packs down a lot smaller than tape.
Prusiks only work well where the main rope is significantly thicker than the secondary, see here, however saying that I use 3mm racing dyneema as my ridge line and I tension my tarp off it using bungee loops prusiked to it, works fine.Satyr
Thanks for the info.
My question about prusiks was more to do with tensioning tarps than climbing.