I have to play through as darkside at least twice. Once as a male and once as a female. After that, I can usually only go through as a lightsider. KotOR I ruined it for me when I had to use my darkside threats against the woman on Tatooine. Later, I had to kill Mission?! Darkside may be more fun for most, but not for me. I still enjoy force storm and take huge force point hits.