Thank you everyone for your comments and suggestions. I want to make sure I get off on the right foot. Don't want to be sliding down the tree the first time I go to sit in the hammock.
The tree in the photo is Green Ash with possible infection of the Green Ash borer
I'll know for sure next year.
As long as the tree is smaller in diameter by 6 inches than the length of the spreader bar, I'm going to be ok, correct?
Let's say my spreader bar is 4 feet, then my distance from bar to tree would be 3.2 feet (80%) That sound right?