[Talguy]

I use Sanear. To adjust lipsynch you need to configure LAV Filters Audio.

To Jayedog, why do you want to use libassfiltermod instead of xysubfilter?

read it might be better. with xysubfilter the subtitle sizes appear bigger on the same size setting when the video has no black bars. Anyone know why that is the case?

Yes. Because the subtitles size is proportional to the video window's size.
I solved this with a set of rules, while alternating between vsFilter and Xysubfilter. But that works for me because I tend to watch movies only in hi-res (and movies are the ones with black bars). So vsFilter (which does not have the problem) is used when black bars are present, while xySubfilter is used when there are no black bars.
Unfortunately it's a sorry state of things of which I'm sadly aware.

This sounds cool and use for everyone else. Can you post your rules file for us to use / base our own rules on?