Another thing worth mentioning in regards to fps & AF-C, this is lens dependent too. There's been a bit of grizzling by the geeky types, that the camera doesn't hit its advertised fps when using certain older lenses. One being the Panasonic Leica 25mm f/1.4. Personally, I hadn't noticed that one, but I do know that my PZ45-175 had an audibly slower frame rate, in the same shooting scenario/situation, than my Panasonic Leica 50-200 f/2.8-4.
I think it's something to do with the aperture diaphragm opening/closing speed, as the older 100-300 with its slower focus motor, displays the same symptoms and behaviour. As far as I'm aware, the mkII version of the 100-300 is fine. That's just the price of progress in my mind.
The odd Olympus lens on the G9 shows the same behaviour too
Just something to be aware of.











