Your log you describe as deinterlaced has a filename of ivtc-log.txt. It starts with a source which is 23.976 -- Force FILM was applied. You're going to get "jerky" motion with only 17.976 fps, if you're applying IVTC filters.
When I see logs that contain things like this:
Code:
3:55:57 PM: WARNING: Settings: 148148
3:55:57 PM: WARNING: Counted: 148137
3:55:57 PM: WARNING: Difference: 11
I always wonder if VdubMod ended early due to a failure. Check your System Log and Application Log in your Event Viewer -- see if there were any problems noted at times when VdubMod completed 1st or 2nd passes.