My GX85, for which I am eagerly waiting, has DFD capability. I had the Panasonic 20mm for a little while and loved the image quality but didn't love the focus speed, at all. I'm wondering now, however, whether I shouldn't give it another shot with this new camera body. Does DFD do anything measurable to cut down on the time to focus? I understand a large part of the 20mm's slowness is just a sluggish focus motor, and it wasn't especially prone to hunting in my experience, but it seems to me that it might at least eliminate some of that. Thoughts/experiences?