I'll be honest, I have no idea how to either, I'm just putting in what I know and what I find in the Debug Menu first, but I'll start experimenting with Tavi's Route
afaik you don't get the option to, if you win the first fight she is angry with you and that's it, you have to sub or you can't progress story(anything besides subbing to her does nothing to progress story, you can be a dom only near the end of tavis route)
