A fall factor of .5 , I dont see how you even get that high. That means you are FREEFALLING 10' with only 20' of line in the system.
Lets look at a canopy tie, or cinched tie off in SRT. Tie in is at 50'... if you ascend to 45' safety in, and introduce 5' of slack into the system and then jump...
Its all unnecessary. A single leg of static line has similar absorbtion as doubled arborist line. With a base tie its even more. Add in redirects and it increases again.
Here is Kevin Binghams transcription of the data Petzl presented at the TCIA SRT Summit.
when climbing SRT or Ddrt system...
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