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From the
TreeBuzz Forum; check these Articles out by Mark Adams:
ARBORIST NEWS - APRIL 2005 - Son of a Hitch: A Genealogy of Arborists'
Climbing Hitches
AN OVERVIEW OF
CLIMBING HITCHES
Presented for professional discussion only.
Some knots are pictured
loose for better view, always Tie, Dress, Set (and Inspect) your knot
lacings.

The strategies would only hold 1/2 the weight
of the climber in the common DdRT (Doubled Rope Technique) of a
not
the full weight bearing strategies of SRT (Single Rope Technique) etc. more
familiar to mountain/rescue, some advanced tree climbers. Tau(gh)t Line is
what most start off on, Blake's a real advancement. Distel (some Schwab)
usually the crossover to attaching both legs of friction hitch to saddle,
can be made in the 1/2" as well as the smaller diameter 'tress cords'. VT
and tuned variation to taste, the undoubted favorite, once 'tuned' both of
hitch and operator! Icicle, in the pictured Bright Yellow Tenex is very
tryable, a loopie sling laced as Klem fair for utility purposes, grips both
ways as it becomes a 4 wrap Heden pulled backwards (whereby a Heden pulled
backwards can slide as it is only half a Klem)!
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Tautline
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Blake's
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Distel
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Schwab
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Icicle
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Vallard Tresse
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Prusik-4 Coil
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Prusik-6 Coil
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Klemheist
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Hedden
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The Taut line, is like a 2/2 (2 over 2) clove hitch, that
walks like a clove, and must have a stopper knot.
A Blake's Hitch, is a 4 coil list; the bottom 2 coils
disturbed by the tail that must go to the opposite side of the host line,
than other tail occupies.
A Distel, is similar to Blake's, in that it is a 4/1 clove;
much nicer ride though, as it introduces pulling the friction tail from both
ends.
A Schwab, is similar to a Distel, in that it is a 4/1, but is
more of a 'Prusik' lacing in that, the bottom tail is reversed, so that both
tails serve out the same side like a Prusik, unlike a Clove.
A Knut, introduces knots that are 'self tending', they will
help 'push' themselves tighter without 2 hands or other device.
A TK Hitch is similar to a Knut as it performs the self
tending action too; and consists of a marl insted of a half hitch for the
tending ring.
The Icicle, gives self tending too, and is deceptively easy
to make.
A VT, has a 4 coil 'cap', then finishes twirling 'braids'
around the host line, to give previous friction by bend, rather than choking
coil!
A 4 Coil Prusik; is like choking a rope sling around the host
line 2x, for a very, simple and positive 'double choke).
A 6 Coil Prusik, is similar to a 4 coil, but 'Triple Death
Chokes' the host line!
A Klemheist wraps a double line around in it's 4 coils, and
the tails come off the bottom of the coil list, go up and go through the
bight serving off top of coils, hanging down in 'pendulum on the side.
A Hedden brings the tails off the top, through the eye of the
bight serving from bottom of fewer coils than 'Klem.'. (So, the tails
don't "K" bend, but run straight?)
Knut, Icicle, and some VT versions with
Knut like finish to VT, also have some self tending properties, even
smoother when assisted with knot tender to serve hitch forward with one
handed pull advancing up or back from limb walk etc.
Many
use 'cords' recommended by one writer on the discussion boards (Brian)instead
of the pictured yellow tenex for the advanced friction hitches.
Though,
the real cartoon character to watch fer, is one that goes by
"MasterBlaster"
!
Moderator JP recommended a deal on 
Guys on boards are serious
about safety, heck ask that MikeMaas Character about this one :

So much to pick up on the
boards, the folks just have to have a good time with it, to keep going...
So if your climbing or thinking about it, wondering about it etc. yea can't
do better than the forums to let ya know what is up... or where to look,
what's new etc.
Thanks to X-Man and
discussion forums for how to continually find better ways for safe
sliding/gripping hitches etc.that constantly improve safety, productivity
and fun!!

More
Knots:
-Finally,
the translators can read the new text and knots the Swiss inventor has been
trying to share(click 'technica' jump word)!
as well as others on our :
2 of the Best Ever General Knot Books on
Sale:
(used
$10)
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