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Reg,
I have yet to put myself in a position where I could get hurt if the wind blew on those tops, and they went with on the hinge. Though that is mainly becasue I haven't needed to do so.
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Thanks Dan, but as a contract climber that position can be often,its not always practical to come back another time.
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The step cut is much stronger than one might think, depending on species and condition of wood fibers of course. One must get used to a new cut like this by putting it to use on the ground and figuring out its limitations and potential. I know of no other person that has been using this cut aloft or on the ground, though I'd be surprised if someone out there isn't dropping trees with it. It has a lot of benefits in that application
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A conventional back-cut has always sufficed for me. I'll advance it slowly; when the wind picks up I'll hold off while there's plenty of holding wood still remaining; when it drops again I'll zip through it fast with the ground workers pulling simultaneously. The whole time I'm at the safest place, at the cut where any movement (the log) is only very slow which buys me precious seconds if the top did go the wrong way.
To be backing away in a bucket, at the wrong time, under the wrong conditions would leave you very vulnerable due to the speed and spread of the falling top.
Consider that you can break a step-cut with only your bare hands or a pry-bar, on even a short log. Comparatively speaking, an identically hinged short log would offer a far more stubborn resistance. So a step-cuts' holding-strength against a big sale in the wind, with your skid steer not even level with the cut, would not fair too well at all.
I can see that it works, but can’t recall a situation in the past where it would have been preferable. Maybe rigging a big top when using a remote tie-in from behind!