devised in 2008 as it can take a lot more tension than the tautline, is easier to untie, and it can be done on a bight, whereas the midshipman's/taut-line can only be done when the rope end is available.
as with the tautline, it can only adjust length by pushing on the knot when not under load
to someone without muscle memory the knot may appear to be controlled chaos in mid-tying but with practice, it's a very easy knot to tie without any visual feedback once you gain a feel for it with your hands.
pass the end around the tree or branch.
wrap a loop twice or thrice around the standing end.
tuck a bight of the end through the loop and tighten.
dressing the Farrimond Friction hitch is simple to do, a firm tug on the standing end plus sliding the knot is all you need
after initial dressing the knot, pull on standing part of bight to tighten sufficiently to stop it slipping under a load
pull on the end of the bight to untie very easily
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