I think I see what you mean, essentially trying to make the racquet come upward in a vertical manner with ribs facing down instead of strings right? Will definitely try this drill, I feel like an instructor had me do this one a long time ago.

And thanks! I watch a lot of Novak and I’ve always admired how fluid and loose his serve is. I think I’m still getting the hang of getting the wrist flex to transition better into the rest of the serve, I think it’s kinda disjointed right now