bitzer,
Bike = neighbor's trash thrown on my property. Not as bad as the leaf covered metal bed springs that I hit while bucking the main stem.
Embarrassing full disclosure on the cut. The bore cut was the "rescue" cut. The original cut was mean to go as you described. Only a conventional face idiot would decide to experiment with a Humboldt on such a dangerous tree, but alas I did. With a Humboldt, I seem to always come up short on the far side with the lower cut so as if it would make any difference (it didn't) I decided to put in the lower cut first and then the straight cut. I was watching where I thought I had gunned instead of watching the cut and seriously over cut the straight cut on the far side resulting in a nice pinch. MACs don't allow PH removal in such situations unless you sever the chain so my "rescue" options were rather limited particularly given that the new cut will be closer to my vital anatomy; thus my decision to go with the bore cut. The bore cut was made much more dangerous by reason of how deep I had made the original face (By necessity both it and the resulting hinge overlap in part the original face, but given the residential setting I couldn't just leave the trees there while I sought out mechanical help). At the risk of seizure of all my saws, I have posted below a picture which shows how badly I over cut. Hard to believe that I was being careful given the overhead risk and the tension together with the extra chair risk that white oak carries, and then let my mind drift off while making the original face cuts. There was no way I was going to stick my head in front or in back of the supporting tree to see how my cut was going, but I could (and should) have pulled the saw out and looked from a safe position instead of relying on my gunning. BTW you can see in the picture a cross where I bore cut the stump to make a vice in my field attempt to straighten the bar. I smacked it a few times with a 5# axe but I didn't wail on it. The bend was on an angle.
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New topic. The area I was cutting yesterday is a dense 6 acre patch that will be cleared, which is why I was told I could cut anything. I intend to save for the owner's further consideration the straight 15"+ oaks and the few large beech trees since some loggers around here mobilize and log ground half that size. Should I save the beech? What is the minimum log diameter for oak on the small end (red and white)?
Ron