My lovely partner wanted this dead ash taken down that was next to the road. My thought was , it's a state road, they should take down I was over ruled. The stump/log in the pictures had to come down first to make space to drop the tree near the road. Both were dead, mostly. I wanted to get my throw rope up into the lowest crotch, 20-25' up. I had to throw blind, because I needed both hands to throw my home made throw rope (corner cut out of feed bag filled with sand and tied off to a 1/4" nylon rope ) that high or I am just too old to throw it with one hand.
The fourth time the bag went through the desired crotch. Rarely have I been that accurate (lucky?) when I could seeing where I wanted the throw bag to go. Got the pull rope on crotch where I
wanted, but it was not longe enough. So what knot would work to tie two ropes together and still be able to untie the knot? Out comes my copy of "The Tree Climber's Companion" to find a knot the works- bowline on a bight. Tied that knot on the ends of both ropes and hooked both ends in celvis.
My lovely partner was on the tractor with specific instructions to keep constant tension on the lines.
She was not indirect line of the tree. The rope went through a pulley, so she and tractor were well away from the direction of fall.
Given the damage to tree, once all the cuts were made a couple of wedges pounded in on the road side, I didn't trust more cutting or wedges and had her pull the tree over. All went well. The next Sunday we did the other tree.
My take away on potentially hazardous takedowns is the analysis of the situation and preparation take much longer than the actual cutting. Several times I revaluated the situation and made adjustments.
I am not a certified arborist. I learn by working with others more knowledgeable, reading, doing and following the arborist on this site. Many thanks to Arborsite