I have two A7Rs at the moment - but I have been thinking of switching one of them for the A7. This isn't primarily for the Electronic First Curtain, though I understand that that does make the shutter a little quieter (still loud though, I understand) and that some people have had less 'shutter shake' issues with it, though I have yet to be overly bothered with this as a problem on the A7R.
The main advantage I'd like to gain is better tracking focus due to the hybrid focus system. Frankly, the A7R can't track in a way that's useful to me and so I really want first hand experiences form those who own both: is the A7 notably beer for this use than the R?
Thanks in advance!