Seeing some really impressive images here and will admit that the eye AF tracking and IBIS have me seriously considering an upgrade.

One thing that I am wondering about is the crop mode. Joel, what advantages are you finding with it? As I understand it, it is truly a crop. Why not just crop in post?

Is a larger subject simply helping with composition or is there something more substantive, like eliminating distractions for AF lock? I do suppose the file size is smaller.