Yeah I don't want an undo-tree bound like that, because when I'm hitting undo, I just want a quick response. Default emacs behaviour is what I want.

And C-g, yeah, I don't know what it was doing. It got really weird.

In general this thing seems to want to open buffers all over the place. It's... visually confusing and I kept losing cursor focus in the task I was trying to focus on.