I have the Harken Micro 468F. Tension on the rope will generally be less than your bodyweight. In some cases much less. Some of the vertical forces are being held by the standoffs, so the better the bite, the less tension the ropes sees. I measured tension on my rope over the summer and you see an initial increase in load when you set the stick down into the bark. After that, adding weight to the stick had a smaller than inspected increase in tension. If my memory serves me correctly, the rope was only seeing like 70lb of tension with me standing on the stick. Id have to go digging to find the exact numbers. Note however that it can vary greatly based on the bite of the standoff, the type of bark, and size of tree etc. V bracket on a telephone pole would likely see much more of the weight transferred to the rope (and by extension the cleat) for instance.
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