Hey,
.... and there are two other reasons upgrading to a Fidanza flywheel is a good idea:
(1) You save the cost and time of having your stock flywheel machined (which you would have to do when you change the clutch).
(2) Every time you machine the flywheel you increase the flywheel's "step height," this has the negative effect of actually reducing the pressure plate clamping load. From experience I have found many machinist remove too much material from the flywheel when machining -- this is even worse.
-Rafi