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I've been on the Internet for close to 20 years.
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Funny that is... maybe you were collaborating with Al Gore back then?
15year's ago I was still using BBS's and modem stacks. You must have been one cutting edge guy!
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Spending time researching rope use outside of the tree industry has given me many insights that tree climbers need to know.
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Cool! What kind of research outside of the tree industry did you do? Personal research? Professional research? Are you a rock climber? Caver? Rescue? Ice? What's the story?
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I posted the google results for backing up a rappel so that people can learn all that they need.
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They could have learned it alot faster if you had bothered to post specific relevant links...
See this thread for an example: (ps, it only takes a couple mins of your time)
Types of Biners you use. Quote:
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When I was in high school a lterature teacher would fail us if we ever walked into his class with a copy of Cliff Notes. it didn't make a difference if it was for something that we were studying in his class.
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This, I'm afraid, is just absurd. What's wrong with having reference materials? Consider that some people actually DO the studying any research, and still have reference materials on hand?
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Not doing extennsive reading on your own and just basing what you do with your life support on someone's opinions on a discussion forum can lead to failure, meaning your death.
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People don't learn ALL of it on a forum, forums are for discussion though. Gives you a chance to DEFEND what you like, ADVOCATE for the things you like, and TALK about things. Noone's suggesting that you explain step-by-step how to use the equipment, in order to replace someone's actual research altogether. That'd just be silly!
You said it yourself, its a DISCUSSION forum! So...lets DISCUSS the gear!
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If you want to see one of the slip/grab drop tests get hold of Ken James in Australia. His students did some tests and showed that the prusik was much more likely to slip to failure rather than slip/grab to declerate a fall. Cavers, search and rescue, mountaineering have all done similar tests using their typical rope and gear configurations. In ALL of those tests there is a trend to see that a prusik is NOT a choice that anyone under my supervision will use. There are many more hitches that work better. The klemheist has been my favorite for decades...not years. I have 40 years of production climbing under my boots. And I still climb, FWIW.
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Funny you mentioned cavers.... caving is the one field where excessive FRACTURES/pitting/corrosion etc are regular factors leading to biner failure. You can find the link to the page which gives the scientific explanation for this on the thread I posted the link to further up this page.
Since you deny all aspects of biners being able to fracture and fail, and mentioned caving here, I thought it'd be pertinent to mention it.
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The addition of the slack tender above your extended bridge has some real dangers. Anything could snag the tether and down you go. That PMP up top is a big target for a branch snag too.
The system has some merit but I'm not at all comfortable with your gear combination.
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so what WOULD you be comfortable with? I mean, not just what can be googled, what would you specifically use?