I mean, IF one needed, in a similar situation, one could cut a small snipe in the middle of the lower face, with lower angle to the grain.
I don't really work with people with greater skill sets here much (@ state parks, my supervisor taught me about big trees), so I have to pick up from what others share. Apologies if it was seen as critical.
It's a situation some people might find themselves in with a center post that is strong wood. Once the back-cut is cut-up, going in from the back cut by opening a space, like a jack seat. after a center post is feasible.
You've been around the block plenty. Other people are reading, with lesser experience.
Just discussing.
I bet it went just fine, and they hired you for a beast for good reason.
I'm not a fan of 'oversized' bars, if shorter ones will do, with some techniques. Especially up a tree.