sheeplover!
PERFECTION!
Full quote---
Ok, I didn't want you to cut on your beautiful tree before we had a test to see if it survived.
So I went outside in my woods and cut up one oak tree, approximately in the same places and you described. Then I thought, maybe there's a better way to do it, so I made my own personal cuts on another oak tree, its not pretty but I think it will survive. My last tree too test was when I cut basically all limbs off, its basically a big stick sticking out of the ground now.
I will report every 2 weeks to give you an idea on how its going!