If so, what has your experience been? I shoot high school sports, and use a D5 and D4s. I have a Z7 that I use strictly for portraits/team photos, although I freely admit I'm still very early in the learning curve with the Z7. I'm very comfortable shooting sports with the D5 and D4s. However, the current Nikon trade-in offer has me thinking about trading in my D4s (or maybe even my D850, which would result in a new Z6 and cash back to me). But then again, the D6 and a very interesting 120-300 f/2.8 are on the horizon. Any thoughts?