u/Brief-Night8630

I have the Z8 (and Z6iii) and just got the amazing Nikkor Z 70-200 f2.8 II S Zoom. I realize that I need something longer to cover the 200-500 or 200-600 range. I like to shoot wind surfer-kite boarders and car races especially. While I prefer native Nikkor lenses, I would consider Tamron or other 3rd party lenses. Is the Nikkor Z 100-400 VR S Zoom fast focusing enough? Sharp enough? Resolution good on Z*? Other suggestions?

I just got the amazing Nikkor Z 70-200 f2.8 II S Zoom and realize I need something longer to cover the 200-500 or 200-600 range. I like to shoot wind surfer-kite boarders and car races especially. While I prefer native Nikkor lenses, I would consider Tamron or other 3rd party lenses. Is the Nikkor Z 100-400 VR S fast focusing enough? Sharp enough? Other suggestions?