Why couldn't he access the higher level light side powers? Or discover new and unique abilities of his own?

That's the view of the Sith Order, but not necessarily every single Sith. Light side Sith would oppose it.

Btw, I had both my Sith start out dark, but my pure blood warrior turned light and I intend for my twi'lek inquisitor to do the same. My Warrior was solid Dark until the Revanite quest line, and fully committed to the light on Tatooine. My inquisitor was always mostly dark, except she still resents the Empire, and is sympathetic to those who want to escape from it. She has her own emotional baggage that keeps her from going light for now. I intend for Andronikos and Ashara to give her a sense of security and stability. Currently, at lvl 25, she cries herself to sleep at night, because she knows what the Sith are, and what the Empire is, and saw immediately that Zash was too good to be true, but has enough anger from her past enslavement for all the dark side energies you could ask for, and doesn't know what to do about her life. Plus, she's super lonely.

Why would they be using dark side abilities if they're light side sith? And, since sith and Jedi are just organizations, why couldn't a light side sith access the light side as much as any Jedi? Is there any definite reason to think drawing on positive emotions won't give you more access to the light side than the typical Jedi approach? Note: when we say light Sith, we mean PURE light Sith, as light as any Jedi. Even if the Jedi approach does lead to greater power, why couldn't a light side Sith follow EXACTLY the same path as a light Jedi.

I haven't gotten very far yet, but I've got my ideas. Unfortunately, my characters are spread across three servers. My BH (Skarphedin) and Smuggler (Bjarno) are on the same server, and both have Scandinavian-ish names and looks, as I intend for them to be brothers. My male Trooper (Tryggvi) will be related to them somehow. All three are human. My Jedi Consular (Eleanor, Miraluka) will be an old friend of the female Jedi Knight (Kelila, Mirialan). I imagine my female Sith Warrior (Zenobia) will be related to my IA (Urion) (both human) I have a human Jedi Knight (Dushant), pureblood Sith Warrior (Duryodon), and Twi'lek Sith Inquisitor (Mirele) on one server together, which is potentially problematic. I'm not sure WHAT to do with them. I imagine the latter two could be allies in the Light Sith movement, assuming I go the Light path with Mirele, which I'm not entirely sure about. Duryodon's been pretty dark, but I plan for him to gradually change his ways and go Light later. Mirele will be conflicted, but I'd like for her to be mostly dark for a while and then switch, too, but later. Not sure how Dushant can fit with them.

Thanks, but could anyone be more specific? Particularly, do you have to side with Ranna about what to do with the Flesh Raider's weapons?

The first play-through, I didn't take the first play-through option with Ranna, and none of the others appeared, so I started from scratch on another server, with basically the same character, got to the same place, took the first flirt option, but the others STILL didn't appear in the conversations that followed? Is my guy just too light-side? The only dark side choice he made up to this point was with regard to Spanios and Moracen. What's going on?

I want Darth Revan for the Jedi Knight or Consular class. Come on, you all know you want it! I fell in love with that guy in KOTOR and want to catch up with him properly.

Doc single-handedly convinced me to roll a female JK, for when I'm done with the male one. Might be kind of sleazy, but seems to have a good heart. And the common denominator between health care and womaizing is something good.

Jaesa is ONLY romanceable on the dark side, so you might as well take advantage.

My Renegade Shepard isn't so much evil as rough and tough. I plan to go lightside with the Smuggler. There's no real expectation for the smuggler to be really virtuous, which makes it more attractive. I plan for my Jedi Knight to be a LITTLE dodgy, and for my Sith Warrior to go light side. I'm all about confounding expectations.

On second thoughts, I'll risk it. Mine will be Bjarno.

Looks like a bustle or something, or the shape of the robe itself.

What level are you?

OOOH! I know! You might end up having to go with Orlando though. I have a Latinized Scandinavian name in mind for my smuggler, and I'll say no more.