SkwerI
Treehouser
I'm sorry but I simply do not comprehend. I must be dense or something. But use whatever works for you.
Gary in a situation where I have room to layout a spar but am worried about obstacles nearby from a bad bounce. I tie or chain off the butt to the stump and then you can use your room without fear of a bad bounce.
1. Undercut
2. Tie or chain off
3. Let 'er rip.
.... Even if you are leaving the wood you need to move it around to keep your LZ clear.