@Yarz I believe the kinking ('hockling') is due to using it for descent, I've yet to have much issue although I seem to change ropes relatively often but the way I was envisioning them shouldn't encounter this as the rope would go 'straight through' (from bottom through small hole in the 8, then down&out the large hole or vice versa as I imagine you'd want the large hole as the side that gets tethered to the tree, as you say like a fishing-pole)
I have and love my Safebloc I had it in a 3/4 p.dyne 20' tail and recently moved it to 3/4 TEC 9' whoopie it's my favorite terminal anchor, also have 3 more ringed anchors that're all more-or-less suitable for terminal anchoring or heavy-duty redirecting, with 5/8 bull rope it works a treat it's amazing how little you have to rely on a groundsman to do anything but relieve
some pressure (timing/running hasn't been of much relevance on medium stuff, I haven't done anything past medium using a single anchor though...even when it's in 1:10 it makes me nervous thankfully it doesn't happen often but if I expect a peak forces to get much over 1k a single anchor makes me uncomfortable am lucky I've had little 'rush work' where it was heavy wood and am limbing more often than felling)
@Ketchup I don't think it would....are you picturing the bull rope running in-parallel, 100.0% over the whole way, with the fig.8? I don't mean to run the rope as-if you were setting up for human descent (which will hockle rope over enough time) my idea was to tether a large fig.8 to a tree with say 1/2" or 5/8" sling and run the bull-rope through one hole/out the other, it'd be a floating anchor/re-direct used for adding a lil friction and for spreading forces (fish-pole'ing, spreading forces *through* a canopy, moving them away from a weak point etc etc) Have to imagine the minimal friction of just passing-through one hole/out the other would be ~comparable to a Rigwrench and they're 'mid-line-leavable', feel like they'd be useful but sadly I've since become of the mindset that 1/2 isn't a suitable bull-rope for default in fact I only use 1/2 when I need its length (have much longer 1/2 polydyne than 5/8) so unless I wanna spend like $50 per fig-8 for oversized gear I couldn't fit it properly (although maybe having some that're quickly tethered w/ my 1" nylon loops in my gear bag for rigging-with-1/2 would be useful!), nevermind that w/ a Safebloc, a 3-ring sling, a giant-ring sling, 3/4 steel thimble sling, am now able to use those to effectively spread more forces than I'm currently comfortable cutting lol, LOVE the 5/8 polydyne with rings it's such a winning combination lol seriously it is amazing what I can cut with just 1 guy on the ground and I mean sometimes I've had to have things slowed super fast ie a shed is <10' from the limb so I just set more anchors lol and use all 3 holes in the Bloc (want a 2nd so bad, can't stomach paying MSRP for a loose Bloc and can't find anything better right now, it's a shame how under-used that thing is due to over-pricing IMO I mean it's such useful rigging hardware I see it as 'optimal' for 99% of rigging cases to use it as the terminal anchor, beefed-up / added-to when needed (heck LawrenceSchultz3000 on youtube has some *amazing* footage where he's double-whipping stuff using like 3 Safeblocs and Porty's in these insane setups that honesly are likely far safer than the average Tree Co - maybe I've had bad luck in my beginnings as a contract worker but finding a lot of disreputable folk...
Will put my extra 8's and all my 1" loops into a bag tied to my 1/2 bull rope so I can try this -- I don't see how using
just one could be far off from using a 'Rig'n'Wrench', friction is WRT surface-area so if you can get fig.8's for $10, and 1" nylon runner loops (which are mid-20kN's strong) for next to nothing, you could realistically have 1 or 2 of these loop+fig.8 combo's to be comparable to a RigWrench **but** for the bargain of like $50 you could get like 5 of these loop+fig.8 pieces so you can pull your bull-rope around wherever you want and have it terminate up top with 1-2 proper terrminal-anchors (not that you'd use a RigWrench as terminal anyway, well nowhere you wouldn't also use other ill-conceived ideas like that loopie-omni-block thing some are so in-love with..)
Can't imagine going back from 5/8, it's affected hardware choices for instance #2/Lrg rings won't take a spliced 5/8 polydyne so yeah....when my 3-ring X-sling finally wears-out I'll be using #3's/XL's only (and Safebloc(s)), with the friction they provide on 5/8 it's blown my mind how little I've had to worry about groundsman-competence, that's not to underplay safety by any means am just being honest I mean it's way too frequent that something we've got something w/ too much friction (ie it's hardly moving after being cut) than too-little for 1-2 guys on the rope to handle and I can't overstate how green some of the guys I've had on-rope were...I've also been on the ground while others cut w/ my gear and have handled 1/2 and 5/8 polydyne and 11mm Mercury (same elasticity as p.dyne, ~85% as strong per-diameter) and the 5/8 isn't just (way!) nicer in the hands it is softening the blow so much it is clear beyond doubt, I've compared Mercury to 1/2 p.dyne (relatively comparable dynamic-strengths) and it made the 'hand feel' aspect clear, and that is apparent between 1/2 and 5/8 p.dynes, but their thicker diameter is 'biting' the rings/Bloc(s) so much harder that it doesn't matter if the largest cut will just be some 420lbs log, and we're using 1 anchor and 1 groundsman (ie from him to me at the anchor to the log, no basal setup in fact that's a "only on heavy stuff" thing for me), it's hard to see others using tight 1.2% bull rope on tthese slick 4" wheel blocks when it's just creating this 'game' w/ the groundsman where their ability (and reliability) to run something properly is critical....w/ my 5/8 + rings setups I could literally have 1st-day'ers for most of my jobs and it wouldn't matter, it's just "don't let it come to a COMPLETE stop any earlier than [xyz]" so I'm not being shaken if they snub too hard which is often very very easy w/ my setups although thankfully the rings +/- rope seem to take-up a good deal of that shock for instance I've had limbs of like ~250lbs snubbed on me when I was on relatively-thin diameter limbing myself and have damn near had a heart attack, now so long as I setup 2 slings for any job and add 1+ as weights go up, anytime something's been snubbed it's been no big deal I've never been shook like I had in the past when using a single anchor point (a low-friction one, w/ 1/2" bull rope)