Just to be sure: choosing the darkside flirt option at Ord Mantell doesn't cause this?

..now I'm scared

Thanks for your replies. Hm, guess I'll definitely skip the Bonus series then.

So my Sentinel is level 21 at the moment and I'm near the end of Taris..finished my class story there but I've still got one quest hub left plus the whole bonus series thingy. My class quest for going to Nar Shaddaa is marked as level 20 and on top of that, the next flashpoint is around this level as well. I really want to do and see all the content this game has to offer but I'm afraid I'll be way overlevelled. Does it get better later on? Should I just abandon any quests I have left on Taris and move on?