Isn't the profiles multiplier for conversion rate?
What I mean is a video already at 3x playback speed before SVP, like fast forwarding effect. So using x3 of 23.976 video as the basis for interpolation.
Something like <frame 1> - <frame 1 + 50%> - <frame 2> - <frame 2 + 50%> - <frame 3> and repeating, so a 3:2 ratio of real to interpolated frames like R - I - R - I - R
So for 23.976 x3 I would need 1.6 conversion rate to match 119.88 hz refresh rate if possible
Sorry if I misunderstood