Is it after you select your second combat style, I have launched that quest, but stopped there because if I picked a light side second combat style thinking I could swap my original, I would be fairly annoyed if I couldn't. I also selected a second combat style on my other Jedi, and I don't recall having a chance to swap my first combat style, I did this yesterday because I cared less about that character and was wondering the same thing.

I have a Jedi shadow that was level 75 when 7.0 launched, my understanding was that I would be able to switch that combat style to sith assassin when I got the dark side V achievement. I recently did this on another character, I don't necessarily want the character to be dark side (the character is light V), but I did want to run a mix of Jedi/Sith combat styles, I was wanting to ideally run Sith Assassin/Jedi Guardian. But I don't seem to have a way to change my combat style to the mirror. I have not selected my second combat style since not being able to change my first combat style would have a large impact on which combat style I select. Am I misunderstanding something, or is there a way I can change my original combat style to the dark side mirror?