Swing Dutchman can be more unpredictable, and needs good species/condition as well; as stated.
Combination of Dutchman and Tapered together, w/o anti-swing.
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Wider stump for this i think is better, giving harder Tapered Hinge pull
and heavier,fast as possible tree as well, for taking forces that usually stand against us and making work for instead
>>so more weight, leverage, speed, width work for not against you, slamming as hard and fast as possible into kerf (or high step) to get this rebound/stone skipping across face to other side affect
kinda deep kerf closing on fence side hard , like allowing it to throw that direction(hard from lots of weight) and slams into wall on kerf close throwing spar across
>>in concert with Tapered Hinge pulling across
Because not even a tuft of fiber on fence side, can allow violent swing.
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So in normal hinge, always save some anti-swing tuft of fibers at each side , as leveraged positions of anti-swing.
So normal Tapered Hinge would be all the way across , pointed end as anti swing i think.
Perhaps face is center punched, but extremes preserved!
To in no way inspire or allow swing affect.
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Once again as with Tapered Hinge, learned at full load felling examples but carried into tree; played more with swing mechanix in horizontal limb swings across, don't need anti-swing tuft then, it won't swing up!
Most branches not wide enough, so trying to get long , heavy limb to think can close down hard/fast with all it'sleverage until double kerf closes, to then go for re-divert that force/skip across horizontally as upper Tapered pulls too. Kinda same thing as swing turned on side, not as violent.
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Any stretching Tapered Hinge effect, needs strong elastic wood species/condition.
Any slapping Dutchman effect needs strong rockhard wood species/condition.
Not all species, conditions present both at same time!
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To me i try to fake it out, like letting it go the direction it wants to go to build acceleration, so can turn that force against it like jerking a leash, as it slams Dutch close 1 side. Then have hyper push and hyper tension pull in opposite directions leveraged far apart for rotation, w/o the nominal tuft left, and w/uneven face slap(kerf face in a face close as offside still open) on offside(Dent)/non-lean side just the extreme positions of Tapered pull and Dutchman push, w/o the stabilizing counter checks! Get more spin on ball pushing outward on ball while other hand pulls inward, than 1 hand motion the other as locked pivot kinda thing in my imagery.
Work time (you are saved by the bell!)