You are absolutely right that it is to make the fibers last longer, and to have control over the tree in the fall a littel longer.
It is being taught here in Denmark when you learn how to pull trees down with a winch.
to make the cut always follow the fibers in the tree and not cut deeper than the bar.
these guys are doing something similar,it's just not as effective and it takes time to do it that way.
it is 4.05 minutes into the movie
http://youtu.be/TIz5Orr0QaI
about the movie I dare not publish it because I have "borrowed" music from a Danish musician called Trentemøller. know that many others put movies up with AC-DC and other good music but do not know if I dare to
and X, it is not a big company just had a new pair of pants on the day
there is only me and my 70 year old father as groundie,
if only I can work like him when I'm 70 I'll be happy.
I have only climbed last 4 years but not regular, I work at a harbor on shifts
where I have a week off every month.
I'm glad you like my movie X
I love to see your, Reg's and everyone else's posts and movies, one can learn from