Parallels to coming up over the lip of an edge as perhaps hardest move in mountain/rescue; especially after exhausting climb to this most exhausting move...
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Pre-planning before position is essential to most efficiency in chess game style.
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In pure motion sometimes takes a symphony of timings to orchestrate such a move smoothly by breaking own load force into lesser parts and not losing any helpful inertia etc. Throwing part of weight and letting it give some lift and then throwing, torquing rest of carcass with it to sneak CoG over the 'lip' and catch. Helps from other lines, perhaps even ground crew lifting up w/rig line. Capitalizing on any upward angle, even if pulls across on target mostly; can use to lock to branch and not have that fight, so much in arms, but still need upward angle. Sometimes at just right almost home position can lean back hard to tension line, and cut hard across iron tight line with hand, as pulse from sweat/swig line hits; purposefully throw/roll head and shoulders forward in co-ordination with the motion.
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Kinda at an illegal perhaps extreme (just to illustrate forces ...); in tiredest times of screaching last drop out before finish line ; in fact emptying all i had from same bucket had scraped clean 3x already still having to come back with something..
Found, chainsaw as weight to 'throw' (but not release) thru extended arm rotating arch hard and purposeful up over, whip far leg some arc opposite way at sametime, halfway thru following with close leg on that side and at critical most lift from motion. throwing/swivelling head and shoulders around over aiming for hips to get same. Trying throwing motion of bod now of over higherthan target (aiming thru, not to philosophy*); and settling for on. Takes timing to get peaks of each motion pulse to co-ordinate to hit at once for final lift. Weight gotten on top of target can be some lock, but different than mountain lip ; is weight thrown on other side of branch (after over top) can become ballast force.
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Speed of small chainsaw and arm weight is essential, then timing to take advantage of moment. Energy formulae says you are trying to move smaller mass then with larger, but then times speed squared. So then trying to make up as much of mass difference with that, then not resisting in any way in fact torquing and throwing with the helpful force for best chance. The more you practice, the luckier seem to get the timing etc.
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Seeking to innately understand forces needed and usage, can pre-load to more instinctively take advantage and even find 1/4 second of more neutral loading and/or favorable pulse force etc. to change game as charge by, leaving behind. At times after fighting so many angles and positions etc. can find some silky smooth point of whole system working so much better, ya just know is right and start honing in on that like diving hungry hawk.
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Still not the easiest thing to do, nor to co-ordinate, but very doable at times and certainly much easier than other methods tried especially w/o setup, overly exhausted, and still need to make time!
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* Aim thru not to:
is more on Eastern even martial arts philosophy of motion.
Aim at opposite side of golf ball , because psychologically start slowing down at aimed point, so bluff own mind and aim thru target so are still raging thru like freight train on contact and then follow thru force before mind hits finish line.
Simililair to if going to hit man in nose, aim for back of head, and come charging thru contact point strongest and follow thru strongest etc.
To rest of Pure Inline mantra, also find that aiming thru, makes longer, straighter/truer more Pure Inline focal line thru target(and again gives baseball philosophy follow thru)!