AF. Was surprised that I had a far greater hit rate by slowing down the acceleration. Maybe the up/down movement of a bird flapping was giving it a chase that wasn't there.

I do love the twisty flippy and touch screen for when the set up gets clumsy - low/high level flowers/macro/ close ups, haven't used it for portraits as I don't do portraits though it seems that might be a decent application.

I don't use the 'thumb' point selection feature on the screen when looking through the viewfinder as much as I had thought I would, once to my eye the joystick is where my thumb goes.

For BIF i learned the 12 bits is plenty and I love the sound of the fully electronic shutter .

It would take an awful lot for me to move the R1 if/when it comes out.