Bugger, do you not understand what a pure darkside being is? There is no light influence where they are, and even if one was a lightsider, they would be killed or turned back to the darkside by the strong darkside aura that only gets stronger because of the Sith. The Sith cannot become a lightsider with no outside influence. Now if we were to brainwash one with SUPER mind tricking like we did revan, we could maybe go somewhere with this, but even then the character would still ooze with darkside orgy.
Way to completly disregard what I last said. More powa to you and Horrizon!