@Intruder
I noticed the mkv for the NTSC GOUT are jerky on my smart tv, but I guess that maybe more to do with the refresh rate. Also, I work with raw avi, and avi doesn't handle variable frame rates, although it apparently uses some kind of workaround. So, I'm in two minds about this. But I guess assuming the GOUT is 23.976fps originally, setting it to same as source with constant frame rate and a detelecine filter should do the trick.