what he's talking about is probably only existent in SP, where you spin ur saber about one round as you draw it or retract it.. if you want to do the spin that the dark jedi do, bind a key to "taunt" (yes i know there's a +taunt, but that's non-existent in SP). when u hit that key, you'll make ur weapon float above your hand, and spin it. as for the "spinning the saber round the middle finger" thing, it's just re-equipping your saber again and again, which means kyle keeps spinning one round again and again.. =)
"If it moves, shoot it. If it doesn't move, shoot it anyway cos it might move later. If it still doesn't move, shoot it till it moves."