rip cuts to reduce rigging forces

Butt, what do I know…
tough to say.... not sure what you;re talking about... the first two links are not my work...
On overhead rig of the long , some skinnier near horizontals would favor tighten hard by hand(including climber 2/1 and climber sweat/swig), hitchpoint a bit hinge side of CoG; and use the length as a lever stretch rope hard(from the distance of drift on hinge) as lay load into rope, pre-tightening rope even more until line tension to equal or about the load itself. The longer the lever between hitchpoint and hinge pivot, the greater tightening per degree of drift down.
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Make it handle very lightly on hinge and less tear off shock because most of the weight already transferred to rope by then. At tearoff want rope angle pulling away from climber.
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Use beast's own length and weight against it, and the positive tip weight to make it steer itself into hole to ground. Line up the pool shot correctly and kinda like a martial art, the limb can beat itself; configure it's own graceful demise.

exactly.. you were the first person I ever heard trying to explain the concept online way back at AS circa 2002 or 2003. I think you called it ball in socket or something like that. I had accidentally achieved the result once so thought of that moment, and saw Mark C explain the balance point concept at a riggign workshop in 2002. Then I started working with my climbing mentor who was a true master of the art... he would tie off 40' oak limbs that were so well balanced you could push them with your thumb. He wsa using notches at the time as was Mark C. I discovered that using a rip cut right in the shoulder achieved better results. MUCH BETTER

To my knowlede I AM the first person to publish the technique of using rip cuts to swing limbs with the near COG tie off as you describe above. Also I AM the first and possibly only person to publish the use of a "remote trip" for the described rigging. That is making the cut to cripple the hinge, but only after the groundie allows a little slack in the system. That allows the climber or bucket operator to leave the work area before any movement in the limb is initiated.

 
Do you ever get tired of blowin‘ your own horn Daniel. Asking for a friend.
He's free to call me anytime! if you don't think it's true say so... if you got something better to offer, then put it up...

other than that... you're welcome...

ps.. I give credit where credit is due... Kenny was the first person to put share the concept with the www. He's the OG limb swinger...
 
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Here's one from the other day. 7 ft burr oak, 32" at the butt. Tied opposite side of the rigging point, cranked it up with the GRCS as I cut. Lifted it right off, zero shock load, then ripped it out of there with the tagline on the skid steer. Vermeer 925 couldn't lift it once it was on the ground, had to cut it in half.
 

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Here's one from the other day. 7 ft burr oak, 32" at the butt. Tied opposite side of the rigging point, cranked it up with the GRCS as I cut. Lifted it right off, zero shock load, then ripped it out of there with the tagline on the skid steer. Vermeer 925 couldn't lift it once it was on the ground, had to cut it in half.
I would have never thought that the GRCS could lift that much weight... that's impressive

But was it worth the trouble? Might it have been easier to take it in two since you had to cut it in half anyhow? Or even bomb or lower it in chuncks. Obviously we can't see the obstacles. Point is.. just because you can do something doesn't mean you should...

How did you get the rest of the tree down?
 
Obviously we can't see the obstacles. Point is.. just because you can do something doesn't mean you should...

How did you get the rest of the tree down?

Front half of this oak was over top of a garage and shed. Back half was over gardens, small trees, and rock walls. Small drop zone at the end for wood on the back half. This tree was full rigging.

So naturally, I did it all with some stretchy old 12-strand, my trusty porta-wrap, and my massively over-inflated ego. Then, at the very end, I set up the GRCS to get this picture for the internet.

Anyone who says it should have been done any different is a frickin' idiot ;)
 

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