motard

So I've played through Kotor 2 three times, twice as DS and once as LS, lots of fun and I love it. However, even when going to Dantooine first, getting a lightsaber and the player crystal from the cave real early in the game, I cant seem to get the thing to be any better than 'Glow Moderately' (or something similar to that). I think the stats were +3, +4, +4, +3. A walkthrough I read said the crystal can be 'Blinding' and have some outrageous powers or something like that....any help?