I think MM's post about guying could save someone's life... probably not Big Jon's though... Guying is a good practice to develop and makes you feel a little more confident in the tree...
And MM's rule of peeling bark sounds very reasonable..
Because Jon was tied into another tree, the whole equation changed..
Jon,
Did you lanyard into the oak or work off a single tie in?
I like the way of thinking that "this could be the one"... the truth is they all could pretty much be the one and when we approach a tree with that sort of respect its much less likely for a brain fart to occur...
Stay safe.... ( I need ya)