In reply to Mini Mansell:
> my preference for camping depends on elevation, but if i know i am likely to be below the treeline then hammock and tarp are my go to.
There's very little land in the UK that isn't below the tree line though, it's just rather that we have cut down most of the trees in lowland areas. I could see a hammock system like this being fantastic where I used to live, in Finland - where you never have to go more than a few metres to find a tree unless you're in the middle of an island-less lake (of which there aren't many). But in the Peak if I wild camp, it's mainly high on Kinder or Bleaklow - no trees, occasionally a quick bivvy on the high Eastern Edges - no trees, or quietly in the corner of field behind a drystone wall in the White Peak - no trees! Down low in the Scottish Highlands I can see a hammock working except you'd need a bug net as well as tarp and all the rest, and of course you can use a tent low or high.
This very much isn't meant to be criticism of you or anyone else, or the hammock set up - I think I'm just lacking imagination to see how one would work in the UK!