If the original file is 23.976 FPS, what's the best setting for frame interpolation?

If the original file is 23.976 FPS, what’s the best setting for frame interpolation?

What frame rate do you want to go to? For that frame rate, I usually times it by 2.5 to get close to 60. It’s 59.94.

Source material state & quality notwithstanding, do this: Activate 2X Deinterlace & fixed FPS output of 59,**, by way of “Enhancement”, marking the input as Interlaced, and enough of that freezed dry tasters choice “Dione”, use “Iris LQ”, run it, come back 2Pass it with Frame Interpolation “X2”