VHS deinterlacing issue

[Jin Kyoichiro]

I'm bob deinterlacing a Japanese VHS tape to 59.94 fps using QTGMC in Hybrid and ran into an issue I've never encountered before. The intro and outro scenes are top field first but the rest of the tape seems to be a different field order that I can't figure out.
Setting input scan type to TFF results in a ghosting/shifting effect on every other frame instead of continuous motion. The other input scan types that output 59.94 fps don't look right either. It's hard to explain but I've attached a clip.
Is my only option to use interpolation to achieve smooth 59.94 fps or is there something else I'm missing?

[Sharc]

It's phase-shifted progressive video with some blends, rather than interlaced. There are only 29.97 distinct pictures per second. If you want to smooth the motion you would have to apply field matching to restore the 29.97 fps progressive frames and then apply motion interpolation to get 59.97fps.

[Jin Kyoichiro]

Thanks for the quick reply Sharc. This tape continues to present new challenges and learning experiences.
Did some Googling and think I found the field matching options in Hybrid's telecine section, not too sure. Gonna give my eyes a rest for the night and start experimenting with it tomorrow. Some pointers for good base settings would be much appreciated.

[Sharc]

Here the basic Avisynth script (video only). I think you can map this to Hybrid accordingly.

AVISource("Yuma scene 3 test.avi")
ConvertToYV16()
TFM()
FramerateConverter(FrameDouble=true)  #or use RIFE here

[Selur]

"Filtering->Vapoursynth->Frame->Misc->TFM" and "Filtering->Vapoursynth->Frame->Interpolation->Frame Interpolation"