Even though i gots cable; and Glens takes some knocks about requesting picture resizing (elsewheres); i think that is another excellent tip; Thanks!
i carry 1 redirect 'loop runner' 1" not the newer Spectra/Dynema that Tom recomended(that are great, and light even make nice friction hitch for utility use to tension rig with Z-rig); i use those for rigging only. i have a locking carabiner on it, always. Sometimes i hangit on the backside of a smooth spar, then lace lifeline to front for main support. i make sure the line traces imperfections, the size of the spar itself, not to make a sharp bending line at the carabiner. Any doubts about degree of potential bend, i place another carabiner (or 2) as wider support for 'belly' of line.
A lot of times, i'll put a redirect in, just to work a local region, staying a few feet from the redirect, which is more at a supporting angle, and limits fall/sweep towards main tie in. Sometimes, i only place 1 line of DdRT in the redirect, and keep line tight. This makes ya trolley across dissipating force (i think, rather than drop and swing from pivot of redirect)if needing to use. The lines shuffling through connections 'frictionalize' to slow ya down more naturally. Especially i like it near power lines. Especially with tight line, redirect close, so you must carry horizontally away from lines, can't really drop or swing. Sometimes purposefully redirect, higher than TIP for this function.
When climbing above TIP; i'll strategically place legitimate redirect somewhere on the way up, then kinda cheat and use rigging loops/dynema; as i have a 'catch safety' about every body length. 1 could even fail, weak skinny spar could flex etc., and the string of redirects should catch me. This is where i got idea for plaicng only 1 line in carabiner of DdRT. So, if there was a probem, i would run past it and minimally load redirect, as it wouldn't be catching direct force, but what was left after the run on line - friction of spar and connections, and then me trying to catch self. On the way down, and sometimes on the way up, the sling positions make hand holds, foot holds, drink, hang saw and just take Silky up higher, rigging, speed line, handles to toss lengths etc.
Gotta try one of those fancies with roller in carabiner!
i redirct a lot of rigging lines with slings too, with sling/carabiner. The primary support giving strength, friction and keeps line from taking a sharp bend around carabiner/redirect by load. Also the delivery angle to redirect can pull down along it's spar for more strength if figured right. The redirect places the strength and friction of the main support to deliver to target zone on ground, or clear path to. As long as the point at redirect bend is flatter than 120deg. there is less than load force on the redirect support. Instead of a rescue pulley for redirect, simply through carabiner (if line won't bend to sharply)gives some friction to dissipate force on control side, rather than making matching legs of load like pulley, for less pull on support.
Or, something like that,
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