RECENT POSTS IN 9fps
New Vello Battery Grip For Nikon D850 Shoots 9FPS For $300 Less
Shooting 9FPS on a D850 now can cost $700 more than the body instead of $1000
UPDATE: Vello Battery Grip for Nikon D850 Will NOT Do 9FPS Even With B-5 Cover Kit
If you want 9fps, looks like you will actually have to go the Nikon route.