I don't want to constantly have the last word in the War Game OOC thread, but I'm actually glad you posted since hopefully it'll get other people to continue posting. It's been just a little dead there....
Hey, just saw your technical post and just decided to give a suggestion ^_^
Instead of being a sith-like jedi, a more canonized class or type would be Vaapad. Used most notably by Mace Windu and Quinlas Vos (among others), it is the seventh lightsaber form. Due to its vicious, aggressive nature, it is at the fringes of the dark side and maintaining one's "light side" is difficult