CG on “bad” deinterlaced footage

Hi,
i am adding some water FX for a clip, on some footage that has been shot with a Sony Z1 camera. The bad part is that it was shot using some fake 24p kind of pulldown straight from the camera. The actual footage is 29.97, interlaced of course, but has some kind of frame blending any 2 or 3 frames wich causes some very ugly flicker effect. Maybe some of you already know the camera and this feature.
I was not able to recompose it to some decent progressive format, and from forums reading i think that is not possible, due to the propietary method Sony has to produce that pulldown.

I am asking for some advice on how to deal with the progressive source coming from the 3d program comped onto this awful flickery shot.
Tracking has been a nightmare too.
Should i try to produce a 24p water effect and then try to carry it to the 29.97 rate? should that produce a similar look?

I am just starting this tests, but would be thankful to hear your opinions on this.
I would post some images and any test in this days.
Thanks in advance.

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