Burvol
Bullbuck
I would have gone to the trouble of cutting a humboldt if they were selling the log... but they were milling on site... It was kind of a tight shot between the deck and another log... So I was more concerned with accuracy and thought I'd let them deal with the wood...
I like to stand over the saw and look down the gunnign line on the saw for the top cut of the notch... rarely do I cut the floor like that though..usualy just leave it horizontal... I was hoping the ramp would help the but slide off the stump and reduce the possibility of breakage, but it probably didn't help much... The notch could have easily been much narrower and more shallow, but I did what I felt comfortable with... I rarely get paid for the wood, so really not used to falling for the log...
here's another pic of another falling cut on same job... Not sure about the diameter, though it was probably 18-20"... You can see how shallow the notch was and the upright fibers in the center of the cut indicating a back release.. I wanted a couple extra seconds to get out of there on this one..
As for the saw.. it was almost brand new.... forget the number... think that was a 28" bar.. I put over 30 stroked on every tooth, and it was not skip tooth... that is like sharpening 6-10 regular ground saws... Should have taken the rakers down too... teeth were sharp but it still didn't cut well....
One way to send a stick out off the stump in flight is to cut a "step" or "kicker" as some guys call them. You make a humbolt face, then about 1/3 to half down you make the cut parallel (straight up and down) with the tree on the stump side of the notch. When the tree goes, it touches this little step or whatever you would like to call it, and sends the tree out fairly fast and they tend to fly very horizontal, and land flat, minimizing breakage. I use it on occasion falling timber in tricky spots on cable ground or in other areas where the ground lays strange. You need to be commited to this cut though, slacking in the backcut can pull severe wood, I'll even set it up with a "strap" cut sometimes to compensate this.