Thanks for your comments Ekka and Jim1NZ. When rigging, it's about angles, forces,
proper cut and direction of fall. I gave it much thought before doing the speedline
because I did not want to damage my shed or my next door neightbors fence, who
happens to be my boss.

I set the speedline at about 55 ft.
and tied the end to a nearby tree about 12 feet away. The approximate
angle of the speedline was 60-70 degrees. What do you figure the added
weight was. Limb was about 20-25 feet long and around 200-300 pounds.
Your experience and knowledge are most welcome.