As long as there is some way for someone to Skywalker from the get, otherwise, (see prev.)
Instead of (what can we call a 'prestige class' w/out getting sued?) ticking people off, they should make the LS/DS struggle actually meaningful and tangible. The original iteration (d6) was much closer in prinicipal. You fall to the dark side, you are either a casualty, (NPC /OOP) or you are doing things from the DS perspective. The latter emulates setting better. Dramatic adventure. Make 'em feel it. Typically, what hurts the DS player most? Taking control of the character when they are doing cool DS stuff, and making them do it when they don't want to. "PADME! NOOOOOO!" "I need to heal" GM "Yeah? Feel the power of the DS. Sucks to be you. Ask the emperor if he has a dremel handy." "Why are my friends trying to kill me? Where's my inhaler?"
Provide tangible short term benefits for 'trivial' risk. ("Take a hit of this ma'man, first one's free." All the cool kids are doin' it. Next thing you know, they're doing horrible, shameful things just to get another hit off the force pipe.
Make the DS lure / tempt the Player. "Easy out". More "powerful in the force" the worse it gets. Make a "MBWAHA!" save.
This also makes sense in the 'more dirt than diamonds' realm, and emphasizes what happens when certain whiny water farmers need scruffy hermits or the like. It also somewhat justifies either having the Jedi Order (emph on order), or killing them all. Without guidance and oversight, you've an ongoing rotating genealogical crop of force punks lording it over their sector. Try to kill them all, now you've motivated them to team up and kill you back, which could lead to LS and/or DS groupings.
So, you're stuck either way.
"I'm the bad guy? How did that happen?" M. Douglas f/"Falling Down"
"I voss yust trahink to help. I vonted to be ein painter." A. Hitler
"Murder of 7 million people. You make that sound so dramatic. I'm just misunderstood." J. Stalin.
"MAKE IT HURT DRILL SERGEANT MAKE IT HURT!"
