Knocked down almost 60 dead/ dying trees down close-ish to Mount St. Helens.
Two noteworthy things happened today. Neither ground breaking.
First on a dead doug-fir, maybe 12-14" dbh. The tree was somewhat balanced, but looked like it favored the lay between a cabin and fence next to the restroom. The hinge was maybe 1". I don't remember exactly what led up to this mishap. Something happened, maybe a slight breeze caused the tree to set back. I said, "Ah, SH*%!". Opposite the original lay was a lake, into which I didn't want the tree to go.
This is only about the third time I've had a tree set back with no wedge in place.
So I thought... why not just re-cut a kerf in half the width of the backcut, hoping not to get pinched, expecting not to get pinched. I was able to slip a wedge into the re-cut backcut, bang away a bit, and it lifted enough for me to be able to push the tree right to the intended lay.
Second was implementing an Arbormaster technique which Duane taught me for stacking 3 wedges vertically.
We had a backleaning cottonwood tree, almost a spar of a tree, but still alive, a little.
Face the tree as normal. We used a conventional face cut, then bored into the facecut, coming out of the middle of the backcut, cutting a bit of width for some space around the wedge 1.
Next step was to bore in below the first bore cut from the rear, between 1/4" and 1/2" below the first for wedge 2. Then repeat for the third wedge below the second slot.
Successively tap them into the kerfs. Don't collapse one kerf with the adjacent wedge. Get them set.
Cut the back cut up on both sides.
Drive away on the wedges.
The wood between the 3 kerfs breaks free, forming spacers. The bore cuts keep the wedges from being able to move horizontally, and the wood on plastic texture keeps the wedges from spitting back. You can get the lift of 3 wedges on one tree.
Note that having original factory tapered leading edges on your wedges helps, as the kerfs want to close on you if you tap them in too hard, at uneven depths. Wedges that have had the front edge cut accidently, and maybe reshaped, can work, but its just a bit harder.