i have been trying to present this idea in diffrent ways for a year or so, so tried this picture deal. i think i see something here, but have not all the proper names to call it out by to be recognized.
i am looking to maximize securty and pull. The reason for maximizing the pull is to bend the spar over slower and more controlled, maximizing the load on the hinge. So, i don't think that it will come straight off and dig ito the ground, the whole idea is to lean it as far as possible (safely) before coming off the stump.
i like lacings that minimize the load on the knot with a wrap or half hitches previous to the knot. Therefore, i drop out choice A).
The leverage is greater the higher the line, and lower the cut, so B) kinda drops out.
But what if we trenched across the top, so that the height of the pull of C),D) was equal to B)? Well i think that there is something in the positioning of C),D) that might make them greater pulls slightly. i'm looking at the cocked back postion that the pull comes from, perhaps putting a more effective pull somehow? And then....... Does that bend want to come out with more pressure? Does it want to open up and 'dump its bucket'? Does this add something extra? If i take a tight line and pull it (sideways like a bowstring)i can get fantastic pressure and sweat it tighter like this on an anchor, can that same effect be werking in a diffrent form here?
But, then a step further i think i see more...........
In defining between C) and D), the reach is diffrent down the spine, could this length make a diffrence?
If i had on a helmet that also braced my neck, and a line came over my head and under bowlined under my arm pits, would there be less action than if it came down and tied at my ankles (ok some of you'se guys are liking this example a lil'too much...........). It seems to me in this example, i can feel the line pushing my head down as it grabbed what it was reaching for (ankles) and tried to pull there. i think it would try to flip me around more, and deliver more 'action' per same pull compared to C). It also seems the angle of the bend (more acute/more pronounced effect) ie. pull closer to tree, bend wants to be straightened more, makes a diffrence.
i witness this i think in that simple example, in dropping spars, and in this self-tourquing rig. pic i made a while back. With this i can make a horizontal spar tighten its own line, and sweep to the side with very little drop if done write. If you make a hinge that faces down at 4'oclock, and leave a long line of fibre ripped at hinge finish, the torque will just spin the limb around. But if you eliminate all but a 'round' spot of holding wood at the top of the hinge face, the limb will flip over in right conditions (as there is no long hinge to leverage against such rotation action). Now, one good flip over, and the head is usuall off the roof; but you might have to trim branches pointing up, so they don't bang anything during the flip. Once the head is off the roof, you should be ok with the green (more soft and forgiving) end heavier, as now the machine action will lift the butt clear off the roof. i more clearly see where the lenght of the line between the bend and knot makes more diffrence.
So it seems to me that the bend wants to come out of the line the more tension that is placed on the line; that it matters in your choice for hitch positioning. i play with it a lot; but it isn't always needed so i must go as i can, trying to gather these things and test them against themselves as the situations arrive. i seek to find these things, tweak them; and compound them altogether. i think the more items i can gather on my side the more i can usher in more discriminating circumstances.
So........... anyone else ever wonder or refute such things?
Am i asking for it or what?
Is Joe out thar? Or does JP have to shake his head alone?