What people are missing here is.... the point of the Tree Squeeze. It excels for conifer removals, because it is semi-rigid, and you can advance it extremely easy, in your hand along with a steel-core flipline at the same time in a way that is 10x easier than a floppy rope tied back onto itself.
Set it up DRT at the ground, grab it and your flip-line, spur up 20, 30, 40 feet to the first limb, you can cut that and you are already double tied in, choked so you can't corkscrew down the trunk if you gaff out, then grab both again and spur up to the next cut. It moves back down the spar just as easily. Unless you are taking 20' logs, it's faster and easier to just spur back down (in way that is nice to your knees) to the next trunk cut. Then if the site lets you fall a large trunk section from the ground, again, you are already tied in, can rap to the ground, and retrieve it before felling the stick, without having to mess with STR tail lengths, retrieval lines, etc. I do this like... 1-10 times a week. Presetting a SRT line here simply doesn't help much and is a waste of time, your going to be spurring up the tree either way and the limbs in the whole top half aren't big enough to support you anyways.
This is the most common way I do fir climbing removals where you can't take big pieces. I did this like 90 foot fir removal, cutting and tossing every single limb to avoid the house, shed propane tank and fence, then took the whole trunk down in like 3' sections since they were just turning it into firewood, dropping every piece between the fence and propane tank. Always double tied in, always in control, Tree Squeeze below my flipline making all my rope moving super easy, 75 minutes total start to finish.
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