That is real interesting, Stig, your comment about time saved first marking, I hadn't considered that. How far ahead of the cutting does the marking entail, the entire contract? Here, often working on quite steep ground, it raises the question if marking out would be quicker, the toll it takes...
Select management in our woods here, left up to the faller. There are some rules of thumb about spacing and numbers, the larger trees left standing if possible, but since there is really no order per say for the older woods when planted, plus the wild growth, developing an eye is required. It...
I believe that there are environmentally friendly and safe to spray paints out there. People in the town environment, sometimes the woods too, often use a plastic type brightly colored type of packaging tie material here. Not so nice when it wraps around your sprocket. Ask me how I know. :|:
Life needs general rules to keep things in perspective. A hinge should be 10% wide the diameter of the tree, and 2" above the apex for the back cut, don't covet the neighbor's wife, etc. Some things are more open to modification per situation, than others.
Contrarily, some schools of thought actually teach that a higher back cut (too high) will increase the chance of the tree falling prematurely with an improper hinge. I'm not sure if this is a valid perspective. Indicated such, here:
http://www.wimlc.com/files/39477562.pdf
It sure seems like a too high back cut from the face, would have the wedges fighting against wood fighters more needing to bend before breaking. That would require more lift, and possibly not enough to get the tree going over, plus the resistance. Short grain is weaker and breaks a lot easier...
Erik mentioned a very interesting point, and impressive to read it. Something that Jerry discusses and shows in his series 3 vid, that the front and back of the hinge respond differently to the stresses as the tree goes over.
A lower back cut increase falling velocity, an advantage in driving...
It isn't wrong and has advantages, but you should be aware of the possible disadvantages in doing the back cut that way. Some situations require the higher back cut rule followed, for sure. Pull trees, more control from the sound holding wood....the added safety factors, some room for error...
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