Impressive .... Sony has been leading the way for a few years now in my opinion, especially for wildlife and sports photographers. I think Nikon is catching up a bit on their AF. The new A9III also features Pre-Shooting where it captures frames before you press the shutter in case you miss something by being a tad late. Olympus has had this feature for a while.

I have been very tempted to switch to Sony several times but have resisted due to so much I have invested in Canon lenses.

If Canon doesn't already have something similar in the R1 to compete we may see it delayed further and or Canon taking a bit more of a market loss to Sony.