I use QTGMC(“Fast”).SRestore(23.976) for PAL-to-NTSC deconversions, for what it’s worth.
Yeah, QTGMC is better than Yadif but very slow. Using the fast preset is a good compromise, one that I’ve used in the past. The bobber doesn’t make a huge amount of difference though.
For 25fps input, 23.976fps should be the default value, so it’s probably not necessary to specify. I often specify default values myself though. It never hurts. 😄